Plasterboard Ceiling Systems

Transcription

1 Plasterboard Ceiling Systems 400C Issue 1

2 2 Plasterboard Ceiling Systems Contents Standard Ceilings Design Introduction... 3 Fire Ratings... 3 Systems Mass... 3 Decoration... 3 General Construction Details... 4 Materials Installation... 6 Backblocking... 7 System Selection Standard Construction Cable and Loaded Penetrations Pipe Penetrations Ceilings to a Radius Change of Pitch Bulkheads Light Recess Access Hatch Beam Protection Joints Perimeter Details QuietZone Ceiling Systems Introduction Acoustic Ceiling Mount Installation Direct Fix Suspended Load Ratings Performance Acoustic Selector Installation Quiet Ceilings Quieter Ceilings Quietest Ceilings General Information Guarantee... Back Cover TecASSIST Details... Back Cover Contact Details... Back Cover Non Standard Ceilings Design Introduction Fire Hazard Properties Systems Mass Decoration General Construction Details Materials Installation Backblocking System Selector Standard Construction Perimeter and Bulkhead Details... 48

3 Standard Ceilings Design Introduction Boral Plasterboard have been designed to provide fire resistance ratings of FRL 30/30/30, FRL 60/60/60, FRL 90/90/90 and FRL 120/120/120. Systems are also available to provide 30, 60, 90 or 120 mins. resistance to incipient spread of fire. Ceilings can be constructed under roofs of Tile, Aluminium or Steel Profiled Section fixed to battens on a steel or timber framework or under floors constructed of at least 12mm Plywood, Timber or Particle Board fixed to a steel or timber supporting frame. Ceiling systems may be fixed as either a Direct Fixed System, Suspended System, or Direct Clipped (Furred) System. Note: Where illustrations in this manual show a Suspended Ceiling System, a Direct Fixed or Furred System may also be used. These ceiling construction details are not suitable for external ceilings. Construction Features Ceiling can be curved to a minimum radius of 6000mm. Ceiling can be constructed to a pitch of up to 70 degrees from the Horizontal. Ceiling systems can incorporate the following approved features: Access Panels, Bulkheads, Light & Luminaire fittings, Plumbing Pipe penetrations, Power Cable penetrations, Loaded penetrations, Control Joints, Protection to Steel & Timber Beams, Changes in ceiling slope direction and a variety of Perimeter Details. Thermal or acoustic insulation (max. 3kg/m 2 ) may be placed above ceiling. Fire Ratings Boral Plasterboard FRL 30/30/30 Ceiling Systems: Appraised by the CSIRO Division of Building, Construction and Engineering and covered by fire opinion FCO Boral Plasterboard FRL 60/60/60 Ceiling Systems: Appraised by the CSIRO Division of Building, Construction and Engineering and based on fire tests; SI 23, SI 736, SI 1761, SI 1891,TR 238(L), TR 336(L) and FSH These systems are covered and validated by fire opinion FCO Boral Plasterboard FRL 90/90/90 Ceiling Systems: Appraised by the CSIRO Division of Building, Construction and Engineering and based on fire tests; SI 23, SI 710, SI 736, SI 1761 and SI These systems are covered and validated by fire opinion FCO Boral Plasterboard FRL 120/120/120 Ceiling Systems: Appraised by the CSIRO Division of Building, Construction and Engineering and based on fire tests; SI 23, SI 710, SI 736, SI 1761, SI 1891 and FSH These systems are covered and validated by fire opinions FCO-1856 and FCO For details of the FRL 120/120/120 system, please refer to Boral Plasterboard TecASSIST or TecSYS - a comprehensive technical catalogue on CD-ROM (see back cover). Early Fire Hazard Properties Boral Plasterboard Firestop, tested for Early Fire Hazard Properties in accordance with Australian Standard , recorded the following results: Ignitability (0-20) - 13 Spread of Flame (0-10) - 0 Heat Evolved (0-10) - 1 Smoke Developed (0-10) - 2 Ceiling Systems Mass Calculations Component Mass One layer of 16mm Boral Firestop Plasterboard has a mass of approximately 13kg/m 2 ; One layer of 13mm Boral Firestop Plasterboard has a mass of approximately 10.5kg/m 2 ; Rondo Furring Channel Part No. 129 has a mass of approximately 0.5kg/m; Rondo Top Cross Rail Part No. 128 has a mass of approximately 0.7kg/m. Systems Mass The following table shows mass calculations based on the above approximations: Plasterboard Layers 1 x 16mm 2 x 16mm 2 x 13mm 3 x 13mm 1 x 13mm 1 x 16mm 3 x 16mm 4 x 16mm Decoration Plasterboard Mass 13kg/m 2 26kg/m 2 21kg/m kg/m kg/m 2 39kg/m 2 52kg/m 2 Suspension System Mass* 15kg/m 2 28kg/m 2 23kg/m kg/m kg/m 2 41kg/m 2 54kg/m 2 * The suspension system mass is approximate only and based on a Rondo steel suspension system with Top Cross 1200mm centres, Furring 600mm centres and an average drop. The ceiling system is flush jointed to provide a smooth, continuous surface ideal for all forms of decoration. Care must be taken to apply paint or other finishes strictly in accordance with the manufacturer s instructions.

4 4 Standard Ceilings Design General Construction Details Movement joints should be put at building construction joint locations. Control joints should be spaced at not more than 12 metre max. centres in either direction (15 metre centres where there is perimeter relief). Refer to "Joints" for details. Specifiers should be aware of the likelihood of frame movement due to structural, thermal and seasoning effects on direct fixed plasterboard ceilings. Where necessary specify a furred system to minimise the risk of ceiling damage due to these effects. Caution: Boral Plasterboard ceiling systems are not designed to support the weight of maintenance personnel, additional plant or storage of goods. Materials 16mm or 13mm Boral recessed edge. Boral Plasterboard Jointing Compound (as preferred from the Boral Plasterboard Jointing Compound range). Boral Plasterboard Cornice 55mm, 75mm & 90mm if required, applied using Boral Plasterboard Cornice Adhesive or Cornice Adhesive Mid Set. Perforated paper tape. Approved fire-rated sealant for caulking gaps at ceiling perimeters. Boral Cornice Adhesive. Screws and nails as specified. Rivets (all steel). Refer to Safety Data Sheets, available from Boral Plasterboard Sales Offices, or the container labelling, when handling relevant products. All materials used in the construction of Boral Plasterboard ceiling systems must be carefully stored and protected on the construction site. Plasterboard is to be stacked flat and protected from moisture. Boral must not be used where it will be exposed to excessive moisture. In addition, damaged plasterboard sheets and accessory materials must not be used. Fasteners Screws All screws are to AS corrosion class 1 and are defined as follows: Type S is a double start, needle point, bugle head gypsum screw for fixing to steel gauges of up to 0.80mm BMT. Type D is a double start, drill point, bugle head gypsum screw for fixing to steel gauges from 0.80mm to 2.00mm BMT. Type W is a single start, needle point, bugle head gypsum screw for fixing to hardwood and softwood framing. In some instances double start screws are permissible (refer to Boral Plasterboard for details). Type L is a single start, needle point, bugle head gypsum screw for fixing plasterboard to plasterboard. Note that correct screw length is critical when fastening to resilient furring channel to avoid acoustic bridging. Nails Although nail lengths specified are minimum, care should be taken when using longer nails to avoid bending in hardwoods or popping of plasterboard with unseasoned timber. Fastener Selection The following tables show the correct selection of screws and nails for the construction of Boral Plasterboard ceiling systems. Number of Layers of Plasterboard x Thickness 1 x 13mm 1 x 16mm 2 x 13mm 2 x 16mm 1 x 13mm + 1 x 16mm Screws - Plasterboard to Ceiling Frame Number of Layers of Plasterboard x Thickness Plasterboard A 1 x 13mm 1 x 16mm 1 x 16mm Timber Frame - Type W Screws 6-9 x 32mm 6-9 x 40mm 6-9 x 50mm 6-9 x 60mm 3 x 13mm 8-8 x 60mm 3 x 16mm 8-8 x 75mm Screws - Plasterboard to Plasterboard Plasterboard B Min. 13mm Min. 16mm Min. 2 x 16mm Steel Frame - Type S or Type D Screws 6-18 x 25mm* 6-18 x 30mm 6-18 x 40mm 6-18 x 45mm 7-16 x 50mm Type S only 8-15 x 60mm Type S only 6-9 x 50mm 6-18 x 40mm Screw identification is given as: (min. gauge) - (threads/inch ±1) x (min. length). * For ease of construction with framing steel gauges of less than 0.8mm BMT, use 30mm minimum length screws. Type L Screws for Fixing Plasterboard A to B 10-8 x 32mm 10-8 x 38mm 6-8 x 50mm Screw identification is given as: (min. gauge) - (threads/inch ±1) x (min. length)

5 Standard Ceilings Design 5 Fasteners (continued) Number of Layers of Plasterboard x Thickness 1 x 13mm 1 x 16mm 2 x 13mm 2 x 16mm 3 x 13mm 3 x 16mm 1 x 13mm + 1 x 16mm Nails - Plasterboard to Timber Frame Smooth Shank Gold Passivated 40mm¹ 30mm² 50mm¹ 50mm² 65mm¹, ² 65mm¹, ² Annular Ring Shank and Uninail 30mm¹ 30mm² 1 = Softwood 2 = Hardwood Galvanised 2.8mm Diameter 40mm¹ 30mm² 50mm¹ 40mm² 50mm¹, ² 65mm¹, ² 75mm x 3.75¹, ² 75mm x 3.75¹, ² 65mm¹, ² 50mm¹, ² Rondo Fixing and Suspension Components Manufactured by Rondo Building Services Ltd. and marketed by Boral Plasterboard: Furring Channel Top Cross Rail Joiner to Top Cross Rail 237, 226, Direct Fixing Clips 247 or Suspension Bracket Suspension Rod DU05 - Wall Trim Adjustable Suspension Clip P32, P01 - External Corner Bead All Steel Angle 35x35x All Steel Angle 50x50x0.75 P35 - Rondo Control Joint P50 - Shadow Line Trim See illustrations below. Top Cross Rail No. 128 Direct Fixing Clip No. 226 Furring Channel No. 129 Suspension Bracket No. 247 Joiner No. 139 Direct Fixing Clip No. 237 Direct Fixing Clip No. 394 Suspension Clip No Suspension Bracket No. 274 Shadow Line Trim No. P50 Steel Angle No. 554 Corner Bead No. P32 Control Joint No. P35 Wall Trim No. DU05 Suspension Rod No.121 Rondo Fixing and Suspension Components

6 6 Standard Ceilings Design Installation Ceiling systems may be constructed by fixing layers of 16mm and/or 13mm Boral Firestop Plasterboard in either, a Suspended, Direct Fixed or Direct Clipped (furred) system as per details under "Standard Construction". Furring channel and framing supports to be taken to and provided within 50mm of ceiling perimeter - min 15mm end clearance to walls. Allowance should be made for an expansion gap at the rate of 3mm per 1 metre run in abutting Furring Channels and Top Cross Rails. All permitted and approved fire-rated penetrations or features must be installed and caulked in accordance with the details provided in this manual. Suspended Systems Ceiling framing and design to be in accordance with the requirements of A.S Attach suspension rods to suspension rod brackets that are anchored to structural framing or concrete soffit, at 1200mm maximum centres in each direction. Note: Each suspension rod bracket fastening must be capable of supporting a weight of 143kg plus the self load of the system and pressure loads. Attach suspension clips to top cross rails, and fit suspension clips to rods. Adjust the rails to a true and level plane. Position furring channels at 600mm maximum centres and attach to top cross rails with a locking clip at each intersection. Join lengths of furring channel with furring channel joiners, ensuring the joins are staggered. Extra suspension components must be provided to support light fittings, bulkheads and other fixtures. Spans and spacings may be reduced if required. Direct Clipped (Furred) Systems Position furring channels at 600mm maximum centres and attach channels to structural framing with direct fixing clips at 1200mm maximum centres, or to concrete soffit with anchor clips fastened to soffit at 1200mm maximum centres. Ensure that furring channels are fixed to a true and level plane. Spans and spacings may be reduced if required. Direct Fixed Systems Where fixing direct to timber or steel framing without furring channel, framework should not exceed 600mm spacing. Spans and spacings may be reduced if required. Plasterboard Application for Systems using 1, 2 or 3 Layers of Plasterboard. 1. Fix Boral across the Furring Channel, Timber or Steel framing. 2. Butt (end) joints on the first layer (uppermost sheet) not formed on framing members should be back-blocked as described under "Back-blocking". 3. The first layer (uppermost) of Firestop plasterboard sheets are fastened at 200mm max. centres in the field of board and at 150mm max. centres on ends and edges (staggered). 4. Additional layers of Firestop plasterboard sheets are fixed in the same manner as the first layer but with joints staggered between layers min. 200mm. 5. Additional layer butt joints not formed on a framing member are screw laminated to the previous layer at 200mm max. centres. 6. Tape and finish face sheet with preferred Boral Plasterboard jointing system. Plasterboard Application for FRL 120/120/120 Systems Using 4 Layers of Plasterboard. 1. Fix the upper two layers as in steps 1 to 5 above. 2. Fix Rondo P.N. 129 furring channels at 600mm centres to Rondo P.N mm centres fixed through upper two layers and into the primary framing with min.12 x 60mm roofing screws. 3. Fix first of bottom two layers of Boral across the secondary furring channel framing at 200mm max. centres in the field of board and at 150mm max. centres on ends and edges (staggered). 4. Butt or end joints on this layer not formed on framing members should be backblocked as described under "Back-blocking". 5. The second of the two bottom layers of Firestop plasterboard sheets is fixed in the same manner as the first layer but with joints staggered between layers min. 200mm. 6. Screw laminate bottom layer butt joints not formed on framing members at 200mm centres to previous layer with 10x38 Type L screws. 7. Tape and finish face sheet with preferred Boral Plasterboard jointing system.

7 Standard Ceilings Design 7 Back-blocking Back-blocking is a mandatory fixing requirement where specified in the Australian Standard AS/NZS :1997. Failure to provide back-blocking installed as per AS/NZS :1997 may result in liability for any associated costs relating to maintenance and/or rectification caused by jointing defects. Multiple Layers Butt or end joints on the first layer (uppermost sheet) not formed on framing members must be dry back-blocked as follows: Cut back-blocking pieces from 16mm Boral to sizes no less than 200mm wide and in lengths that will fit between the framing members. Fix Boral Plasterboard ceiling sheet transverse to framing members, placing the back-blocks centrally along the full length of the sheet's edge. Fix ceiling sheet to back-blocks with 10 x 38mm Type L screws at 200mm max. centres. Fix the next ceiling sheet and screw laminate to back blocks. Back-blocking pieces of 16mm Boral min. 200mm wide fixed with 10 x 38 Type L 200mm max. centres For single layer systems, back-blocks to be fixed with cornice adhesive and screws Single Layer Where system comprises only one layer, back-blocks must be additionally fixed with cornice adhesive as follows: Cut back-blocking pieces from Boral Plasterboard sheet to sizes no less than 200mm wide and in lengths that will fit loosely between the framing members. Prepare Boral Plasterboard Cornice Adhesive in a clean container with sufficient water to make a stiff paste of smooth consistency. Apply adhesive over the full face of the backblocking pieces using a notched spreader to form beads of 6mm x 6mm at approximately 20mm centres and at right angles to the joint. Fix Boral Plasterboard ceiling sheet transverse to framing members, placing the back-blocks centrally along the full length of the sheet's edge. Fix ceiling sheets to back-blocks with 10 x 38mm Type L screws at 200mm max. centres. Immediately fix the next ceiling sheet and screw laminate to back blocks as previously. Architectural Specification Boral Plasterboard Ceilings shown in the relevant drawings shall consist of materials supplied by Boral Plasterboard, fixed and finished in accordance with the instructions contained in Boral Plasterboard Technical Manuals and in TecSYS - a comprehensive technical catalogue on CD-ROM (see back page for details). As drawings are updated from time to time, users are advised to check drawing currency before adopting the procedures and details noted thereon. Top layer of Boral Framing Note: Where illustrations throughout this manual show a Suspended Ceiling System, a Direct Fixed or Furred System may also be used. EQ 200mm min. 100mm min. Joints in other layers staggered min. 200mm from previous layer EQ Form plasterboard dry back-block behind all end joints not formed on framed members Laminate back-block to back face of ceiling with 10 x 38 Type L 200mm max. centres

8 8 System Selector Table Ceiling Variations using 1, 2 or 3 Layers of Plasterboard. Fire ratings of FRL 30/30/30, FRL 60/60/60, FRL 90/90/90 and FRL 120/120/120 may be achieved with various combinations of 1, 2 and 3 layers of Boral. Where illustrations throughout this manual give the option of using either 1, 2 or 3 layers of plasterboard, refer to the table below to select the system giving the fire and acoustic ratings required. System Selector Table Fire Rating (FRL) FRL 30/30/30 Resistance to Incipient Spread of Fire # 30mins. Acoustic Rating (Rw)* DFS FS SS PO 37dB 52dB 52dB 30dB Plasterboard Layers 1 layer of 16mm Boral System CS17 60mins. 39dB 55dB 55dB 32dB 1 layer of 13mm and 1 layer of 16mm Boral CS21 FRL 60/60/60 60mins. 60mins. 39dB 40dB 56dB 57dB 56dB 57dB 33dB 34dB 2 layers of 16mm Boral 3 layers of 13mm Boral CS15 CS15 30mins. 39dB 55dB 55dB 32dB 2 layers of 13mm Boral CS20 FRL 90/90/90 FRL 120/120/120 60mins. 90mins. 90mins. 39dB 42dB 42dB 56dB 59dB 59dB 56dB 33dB 59dB 35dB 59dB 35dB 2 layers of 16mm Boral 3 layers of 16mm Boral 3 layers of 16mm Boral CS15 CS10 CS22 DFS = Direct Fixed System with nominal cavity depth of 190mm between ceiling and floor. FS = Furred System with nominal cavity depth of 220mm between ceiling and floor and Rondo P.N. 226 Direct Fixing Clip fixed to side of joist with furring channel fixed to clip. SS = Suspended System with nominal cavity depth of 350mm between ceiling and floor. PO = Plasterboard Only. The Rw rating is for the number of plasterboard layers specified. * Acoustic ratings are based on ceiling insulation of minimum 100mm thick polyester or glass 14kg/m 3. # Also protection to loaded steel or timber beams above ceiling. Ceiling Variations using 4 Layers of Plasterboard. A fire rating of FRL 120/120/120 with a 120min. resistance to incipient spread of fire is achieved using four layers of 16mm Boral - 2 bottom layers and 2 top layers separated by a secondary furring channel framing (System CS6). For details, refer to Boral Plasterboard TecASSIST or TecSYS - a comprehensive technical catalogue on CD-ROM (see back cover). Caution Boral Plasterboard ceiling systems are not designed to support the weight of construction or maintenance personnel, additional plant or storage of goods.

9 System Selector FRL30/30/30 9 System No. Fire-Rating FRL (mins) (Test Ref.) Description and Physical Data CS Hour 30/30/30 30 mins resistance to incipient spread of fire CSIRO Opinion FCO-0568 OR OR Suspended Systems OR Direct Fixed Systems OR Furred Channel Systems Standard Design Roof or Floor Ceiling Systems - Suspended, Direct Fixed or Furred System provides a variety of application configurations using 1 layer of 16mm Boral fixed as a Suspended, Direct Fixed or Furred System. 1 layer of 16mm Boral fixed to a supporting framework of timber or steel at 600mm max. centres. - Firestop is fixed across supporting members - Longitudinal joints (along recessed edges) and Butt or End Joints not formed on framing members should be back-blocked - Back blocks to be screw laminated - Fixing to framework to be as a follows: Fixed directly to timber or steel beams or purlins at 600mm max. centres or - Fixed to furring channel system at 600mm max. centres that has been - (a) clipped or direct fixed to a steel or timber floor or ceiling frame at 1200mm max.centres or - (b) clipped to top cross rails at 1200mm max. centres supported by suspension rod system hung from a concrete soffit, steel or timber floor or ceiling frame. Ceiling System may be fixed to a pitch in the range of 0 o - 70 o from the horizontal or to a min. radius of 6000mm - Brace as required. Flooring over - Concrete Slab or min. 12mm plywood, timber or particle board fixed direct to frame. Roofing over - Concrete Slab, Tile, Aluminium or Steel profiled section fixed to battens or frame.

10 10 System Selector FRL 60/60/60 System No. Fire-Rating FRL (mins) (Test Ref.) Description and Physical Data CS15 1 Hour 60/60/60 60 mins resistance to incipient spread of fire CSIRO Opinion FC OR OR Standard Design Roof or Floor Ceiling Systems - Suspended, Direct Fixed or Furred System provides a variety of application configurations using 2 layers of 16mm or 3 layers of 13mm Boral fixed as a Suspended, Direct Fixed or Furred System. Suspended Systems OR Direct Fixed Systems OR 2 layers of 16mm or 3 layers of 13mm Boral fixed to a supporting framework of timber or steel at 600mm max. centres. - Firestop is fixed across supporting members with all end joints on frame, or dry back-blocked or screw fastened to previous layer - Stagger all joints min. 200mm. Fixing to framework to be as a follows: Fixed directly to timber or steel beams or purlins at 600mm max. centres - or - Fixed to furring channel system at 600mm max. centres that has been - (a) clipped or direct fixed to a steel or timber floor or ceiling frame at 1200mm max. centres or - (b) clipped to top cross rails at 1200mm max. centres supported by suspension rod system hung from a concrete soffit, steel or timber floor or ceiling frame. Ceiling System may be fixed to a pitch in the range of 0 o - 70 o from the horizontal or to a min. radius of 6000mm - Brace as required. Flooring over - Concrete Slab or min. 12mm plywood, timber or particle board fixed direct to frame. Roofing over - Concrete Slab, Tile, Aluminium or Steel profiled section fixed to battens or frame. Refer to Boral Plasterboard TecASSIST for additional details. Furred Channel Systems

11 System Selector FRL 60/60/60 11 System No. Fire-Rating FRL (mins) Description and Physical Data (Test Ref.) CS12 1 Hour 60/60/60 60 mins resistance to incipient spread of fire CSIRO Opinion FCO-0467 OR Acoustic Suspended Ceiling under Fire-rated Ceiling System System is designed to cater for fixing a suspended acoustic ceiling from a fire-rated ceiling above. For furred system - fire-rated ceiling is fixed to purlins supporting a metal deck roof at 1200mm centres using extended Rondo clips P.N.394 fastened direct to web of purlin. For direct fixed system - fire-rated ceiling is fixed directly to purlins. Total mass of suspended acoustic ceiling under not to exceed 12 kg/ m 2 for Direct Fixed System or 4.95kg/m 2 for Direct Clipped (Furred) System. Ceiling (furred) : 2 layers of 16mm Boral fixed to Rondo furring channel at 600mm max. centres. - Firestop is fixed across supporting member with all end joints fixed on frame, or dry back-blocked or screw fastened to previous layer. Acoustic ceiling suspended from clips screwed to furring channel. Refer to Boral Plasterboard TecASSIST for additional details. Ceilings are not designed for human access or construction and maintenance loadings. CS14 1 Hour 60/60/60 60 mins resistance to incipient spread of fire CSIRO Opinion FCO & FCO Upgrade of Existing Fibrous Plaster Ceiling 2 layers of 16mm Boral Firestop screw attached to Rondo steel furring channels spaced at 600mm centres. Furring Channels clipped to Rondo anchor clips fixed through existing fibrous plaster ceiling to existing framing with 50mm Type W screws for soft wood framing or 40mm Type S or Type D for steel framing. Anchor clips spaced at 1200mm max. centres staggered - joints staggered - first layer butt joints may fall on one furring channel across the full width of the ceiling - face layer butt joints located on additional short lengths of furring channel and staggered- face joints finished.

12 12 System Selector FRL 60/60/60 System No. Fire-Rating FRL (mins) (Test Ref.) Description and Physical Data CS20 1 Hour 60/60/60 30 mins resistance to incipient spread of fire CSIRO Opinion FC OR OR Suspended Systems OR Direct Fixed Systems Standard Design Roof or Floor Ceiling Systems - Suspended, Direct Fixed or Furred System provides a variety of application configurations using 2 layers of 13mm Boral fixed as a Suspended, Direct Fixed or Furred System. 2 layers of 13mm Boral fixed to a supporting framework of timber or steel at 600mm max. centres. - Firestop is fixed across supporting members with all end joints on frame, or dry back-blocked or screw fastened to previous layer - Stagger all joints min. 200mm. Fixing to framework to be as a follows: Fixed directly to timber or steel beams or purlins at 600mm max. centres - or - Fixed to furring channel system at 600mm max. centres that has been - (a) clipped or direct fixed to a steel or timber floor or ceiling frame at 1200mm max. centres or - (b) clipped to top cross rails at 1200mm max. centres supported by suspension rod system hung from a concrete soffit, steel or timber floor or ceiling frame. OR Ceiling System may be fixed to a pitch in the range of 0 o - 70 o from the horizontal or to a min. radius of 6000mm - Brace as required. Flooring over - Concrete Slab or min. 12mm plywood, timber or particle board fixed direct to frame. Roofing over - Concrete Slab, Tile, Aluminium or Steel profiled section fixed to battens or frame. Refer to Boral Plasterboard TecASSIST for additional details. Furred Channel Systems System provides 30 mins. protection to loaded steel or timber beams above ceiling.

13 System Selector FRL 60/60/60 13 System No. Fire-Rating FRL (mins) (Test Ref.) Description and Physical Data CS21 1 Hour 60/60/60 60 mins resistance to incipient spread of fire CSIRO Opinion FC OR OR Suspended Systems OR Direct Fixed Systems Standard Design Roof or Floor Ceiling Systems - Suspended, Direct Fixed or Furred System provides a variety of application configurations using 1 layer of 13mm and 1 layer of 16mm Boral fixed as a Suspended, Direct Fixed or Furred System. First layer of 13mm and second layer of 16mm Boral fixed to a supporting framework of timber or steel at 600mm max. centres. - Firestop is fixed across supporting members with all end joints on frame, or dry back-blocked or screw fastened to previous layer - Stagger all joints min. 200mm. Fixing to framework to be as a follows: Fixed directly to timber or steel beams or purlins at 600mm max. centres - or - Fixed to furring channel system at 600mm max. centres that has been - (a) clipped or direct fixed to a steel or timber floor or ceiling frame at 1200mm max. centres or - (b) clipped to top cross rails at 1200mm max. centres supported by suspension rod system hung from a concrete soffit, steel or timber floor or ceiling frame. OR Furred Channel Systems Ceiling System may be fixed to a pitch in the range of 0 o - 70 o from the horizontal or to a min. radius of 6000mm - Brace as required. Flooring over - Concrete Slab or min. 12mm plywood, timber or particle board fixed direct to frame. Roofing over - Concrete Slab, Tile, Aluminium or Steel profiled section fixed to battens or frame. Refer to Boral Plasterboard TecASSIST for additional details. System provides 60 mins. protection to loaded steel or timber beams above ceiling.

14 14 System Selector FRL 90/90/90 System No. Fire-Rating FRL (mins) (Test Ref.) Description and Physical Data CS Hour 90/90/90 90 mins resistance to incipient spread of fire CSIRO Opinion FC OR OR Suspended Systems OR Direct Fixed Systems OR Standard Design Roof or Floor Ceiling Systems - Suspended, Direct Fixed or Furred System provides a variety of application configurations using 3 layers of 16mm Boral fixed as a Suspended, Direct Fixed or Furred System. 3 layers of 16mm Boral fixed to a supporting framework of timber or steel at 600mm max. centres. Firestop is across supporting members with all end joints on frame, or dry back-blocked or screw fastened to previous layer. Stagger all joints min. 200mm. Fixing to framework to be as a follows: Fixed directly to timber or steel beams or purlins at 600mm max. centres - or - Fixed at 600mm max. centres to furring channel system that has been; (a) clipped or direct fixed to a steel or timber floor or ceiling frame at 1200mm max. centres - or; (b) clipped to top cross rails at 1200mm max. centres supported by suspension rod system hung from a concrete soffit, steel or timber floor or ceiling frame. Ceiling System may be fixed to a pitch in the range of 0 o - 70 o from the horizontal or to a min. radius of 6000mm - brace as required. Flooring over; Concrete Slab or min. 12mm plywood, timber or particle board fixed direct to frame. Roofing over; Concrete Slab, Tile, Aluminium or Steel profiled section fixed to battens or frame. Refer to Boral Plasterboard TecASSIST for additional details. Furred Channel Systems System provides 90 mins. protection to loaded steel or timber beams above ceiling.

15 System Selector FRL 90/90/90 15 System No. Fire-Rating FRL (mins) (Test Ref.) Description and Physical Data CS8 1.5 Hour 90/90/90 90 mins resistance to incipient spread of fire CSIRO Opinion FCO-0605 OR Acoustic Suspended Ceiling under Fire-rated Ceiling System System is designed for fixing a suspended acoustic ceiling from a fire-rated ceiling above. Fire-rated ceiling is a direct fix ceiling system to timber or steel beams or purlins using 3 layers of 16mm Boral - 1 bottom layer and 2 top layers for furred system or 3 layers for direct fixed system. Primary System (furred): Top 2 layers of 16mm Boral fixed to a supporting framework of timber or steel at 600mm maximum centres. Firestop is fixed across supporting members with all end joints on frame, or dry back-blocked or screw fastened to previous layer. Stagger all joints min. 200mm. Total mass of suspended acoustic ceiling under not to exceed 12 kg/m 2 for direct fixed system or 4.95kg/m 2 for furred system. Ceilings are not designed for human access or for construction and/or maintenance loadings. System provides 90 mins. protection to loaded steel or timber beams above ceiling. Secondary System (furred): Bottom layer of 16mm Boral fixed to Rondo furring channel at 600mm maximum centres. Firestop is fixed across supporting member with all end joints fixed on frame or dry back-blocked. Ceiling System may be fixed to a pitch in the range of 0 o - 70 o from the horizontal or to a minimum radius of 6000mm - brace as required. Flooring over; Concrete Slab or minimum 12mm plywood, timber or particle board fixed direct to frame. Roofing over; Concrete Slab, Tile, Aluminium or Steel profiled section fixed to battens or frame. Acoustic ceiling suspended from clips screwed to furring channel. Refer to Boral Plasterboard Sales Offices for additional details.

16 16 System Selector FRL 120/120/120 System No. Fire-Rating FRL (mins) (Test Ref.) Description and Physical Data CS6 2 Hour 120/120/ mins resistance to incipient spread of fire CSIRO Opinion FC OR OR Standard Design Roof or Floor Ceiling Systems - Suspended, Direct Fixed or Furred System provides a variety of application configurations using 4 layers (2 bottom & 2 top) of 16mm Boral fixed as a Suspended, Direct Fixed or Furred System. Suspended Systems OR Direct Fixed Systems OR Furred Channel Systems Primary System: Top 2 layers of 16mm Boral fixed to a supporting framework of timber or steel at 600mm max. centres. Firestop is fixed across supporting members with all end joints on frame, or dry back-blocked or screw fastened to previous layer. Stagger all joints min. 200mm. Fixing to framework to be as a follows: Fixed directly to timber or steel beams or purlins at 600mm max.centres - or - Fixed at 600mm max. centres to furring channel system that has been; (a) clipped or direct fixed to a steel or timber floor or ceiling frame at 1200mm max. centres - or; (b) clipped to top cross rails at 1200mm max. centres supported by suspension rod system hung from a concrete soffit, steel or timber floor or ceiling frame. Secondary System: Bottom 2 layers of 16mm Boral fixed to Rondo furring channel or resilient channel at 600mm max. centres. Firestop is fixed across supporting member with all end joints fixed on frame dry back-blocked or screw laminated to previous layer. Stagger all joints min. 200mm. Ceiling System may be fixed to a pitch in the range of 0 o - 70 o from the horizontal or to a min. radius of 6000mm - brace as required. Flooring over; Concrete Slab or min. 12mm plywood, timber or particle board fixed direct to frame. Roofing over; Concrete Slab, Tile, Aluminium or Steel profiled section fixed to battens or frame. System provides 120 mins. protection to loaded steel or timber beams above ceiling. Refer to Boral Plasterboard TecASSIST for further details.

17 System Selector FRL 120/120/ System No. Fire-Rating FRL (mins) (Test Ref.) Description and Physical Data CS22 2 Hour 120/120/ mins resistance to incipient spread of fire CSIRO Opinion FC OR OR Suspended Systems OR Direct Fixed Systems OR Standard Design Roof or Floor Ceiling Systems - Suspended, Direct Fixed or Furred System provides a variety of application configurations using 3 layers of 16mm Boral fixed as a Suspended, Direct Fixed or Furred System. 3 layers of 16mm Boral fixed to a supporting framework of timber or steel at 600mm max. centres. Firestop is across supporting members with all end joints on frame, or dry back-blocked or screw fastened to previous layer. Stagger all joints min. 200mm. Fixing to framework to be as a follows: Fixed directly to timber or steel beams or purlins at 600mm max. centres - or - Fixed at 600mm max. centres to furring channel system that has been; (a) clipped or direct fixed to a steel or timber floor or ceiling frame at 1200mm max. centres - or; (b) clipped to top cross rails at 1200mm max. centres supported by suspension rod system hung from a concrete soffit, steel or timber floor or ceiling frame. Ceiling System may be fixed to a pitch in the range of 0 o - 70 o from the horizontal or to a min. radius of 6000mm - brace as required. Flooring over; Concrete Slab or min. 12mm plywood, timber or particle board fixed direct to frame. Roofing over; Concrete Slab, Tile, Aluminium or Steel profiled section fixed to battens or frame. Refer to Boral Plasterboard TecASSIST for additional details. Furred Channel Systems System provides 90 mins. protection to loaded steel or timber beams above ceiling.

18 18 System Selector FRL 120/120/120 System No. CS7 Fire-Rating FRL (mins) (Test Ref.) 2 Hour 120/120/ mins resistance to incipient spread of fire CSIRO Opinion FCO-0605 Description and Physical Data Acoustic Suspended Ceiling under Fire-rated Ceiling System System is designed for fixing a suspended acoustic ceiling from a fire-rated ceiling above. Fire-rated ceiling is a direct fix ceiling system to timber or steel beams or purlins using 4 layers (2 bottom & 2 Top) of 16mm Boral. Primary System: Top 2 layers of 16mm Boral fixed to a supporting framework of timber or steel at 600mm max. centres. Firestop is fixed across supporting members with all end joints on frame, or dry back-blocked or screw fastened to previous layer. Stagger all joints min. 200mm. Secondary System: Bottom 2 layers of 16mm Boral fixed to Rondo furring channel at 600mm max. centres. Firestop is fixed across supporting member with all end joints fixed on frame, or dry backblocked or screw laminated to previous layer. Stagger all joints min. 200mm. Total mass of suspended acoustic ceiling under not to exceed 4.95kg/m 2 Ceilings are not designed for human access or for construction and/or maintenance loadings. Ceiling System may be fixed to a pitch in the range of 0 o - 70 o from the horizontal or to a min. radius of 6000mm - brace as required. Flooring over; Concrete Slab or min. 12mm plywood, timber or particle board fixed direct to frame. Roofing over; Concrete Slab, Tile, Aluminium or Steel profiled section fixed to battens or frame. Acoustic ceiling suspended from clips screwed to furring channel. System provides 120 mins. protection to loaded steel or timber beams above fire-rated ceiling. Refer to Boral Plasterboard TecASSIST for additional details.

19 Standard Construction 19 Direct Fixed Systems 35mm min. Roofing or floor OR Steel or timber floor or ceiling framing member with or without steel 600mm max. centres 1, 2 or 3 Layers of Boral as required 1, 2 or 3 layers of Boral Firestop Plasterboard fixed transverse to 600mm max.centres. All joints staggered min. 200mm. Timber or steel roof or floor 600mm max. centres End joints formed on framing members and staggered, otherwise end joints on first layer must be back blocked. Where applicable, second and third layers should be screw laminated to previous 200mm max. centres. 200mm 150mm Screws 10mm to 16mm from edges Tape and finish face layer only - with selected Boral Plasterboard system Plasterboard fasteners to be 200mm max. centres in field and 150mm max. centres on end joints - staggered. Refer to Page 4 for fastener details. Note: Systems using 1, 2 or 3 layers of Boral provide varying FRL and Acoustic ratings. Refer to the "System Selector Table" on Page 8 for selection of the required system.

20 20 Standard Construction Direct Clipped (Furred) Systems Roofing or floor Rondo P.N mm max. centres fastened to steel framing member with min. two 10 x 16 Type D screws or equivalent Rondo P.N. 129 Furring 600mm max. centres OR 35mm min. Steel or timber floor or ceiling frame Rondo P.N. 226 or mm max. centres fastened to timber framing member with min. two 2.8 x 30 plasterboard nails or equivalent 1, 2 or 3 Layers of Boral as required 1, 2 or 3 layers of Boral Firestop Plasterboard fixed transverse to Furring 600mm max.centres. All joints staggered min. 200mm. Rondo P.N. 129 Furring 600mm max. centres Timber or steel roof or floor 1200mm max. centres Rondo P.N. 237, 226 or mm max. centres End joints formed on Furring Channels and staggered, otherwise end joints on first layer must be back blocked. Where applicable, second and third layers should be screw laminated to previous 200mm max. centres. 200mm 150mm Screws 10mm to 16mm from edges Tape and finish face layer only - with selected Boral Plasterboard system Plasterboard fasteners to be 200mm max. centres in field and 150mm max. centres on end joints - staggered. Refer to Page 4 for fastener details. Note: Systems using 1, 2 or 3 layers of Boral provide varying FRL and Acoustic ratings. Refer to the "System Selector Table" on Page 8 for selection of the required system.

21 Standard Construction 21 Suspended Systems Rondo P.N. 247 Suspension Bracket anchored to concrete soffit to engineer s detail Rondo P.N Clip Rondo P.N. 129 Furring 600mm max. centres 1, 2 or 3 layers of Boral as required Rondo P.N. 274 Suspension Bracket fastened to steel member with min. two 10 x 16 Type D screws or equivalent Rondo P.N. 121 Suspension 1200mm max. centres OR OR 35mm min. Roofing or floor Steel or timber floor or ceiling frame Rondo P.N. 274 Suspension Bracket fastened to timber framing with min. two 2.8 x 30 plasterboard nails or equivalent Rondo P.N. 128 Top Cross 1200mm max. centres Rondo P.N. 139 Joiner 1, 2 or 3 layers of Boral Firestop Plasterboard fixed transverse to Furring 600mm max.centres. All joints staggered min. 200mm. Rondo P.N Suspension Clip Rondo P.N. 121 Suspension 1200 mm max. centres 1200mm max. 1200mm max. Rondo P.N. 139 Joiner Clip End joints formed on Furring Channels and staggered, otherwise end joints on first layer must be back blocked. Where applicable, second and third layers should be screw laminated to previous 200mm max. centres. Rondo P.N. 128 Top Cross 1200mm max. centres Rondo P.N. 129 Furring 600mm max. centres 200mm 150mm Screws 10mm to 16mm from edges Tape and finish face layer only - with selected Boral Plasterboard system Plasterboard fasteners to be 200mm max. centres in field and 150mm max. centres on end joints - staggered. Refer to Page 4 for fastener details. Note: Systems using 1, 2 or 3 layers of Boral provide varying FRL and Acoustic ratings. Refer to the "System Selector Table" on Page 8 for selection of the required system. Refer to Rondo catalogue - "Suspended Grid Design".

22 22 Standard Construction Acoustic Suspended Ceilings Note: In each of the following acoustic suspended systems, suspension rod bracket fastening must be capable of supporting a weight of 143kg plus the self load of the system and pressure loads. Rondo P.N mm max. centres fastened to steel framing member Rondo P.N. 129 Furring 600mm max. centres o o 0 to 70 35mm min. Roofing or floor Timber or steel framing member 2 x 16mm or 3 x 13mm Boral 2 x 16mm or 3 x 13mm Boral Rondo P.N. 247 Suspension Bracket screw fixed to Furring Channel with 12 x 50 type 17 roofing screw Furred Direct Fastened Rondo P.N. 247 Suspension Bracket screw fixed to framing with 12 x 75 type 17 roofing screw Suspension 1200mm max.centres Acoustic ceiling total mass 2 not to exceed 4.95Kg/m for furred system Acoustic ceiling total mass not to 2 exceed 12Kg/m for direct fastened system FRL 60/60/60 - System CS12 Rondo P.N. 237 max. centres fixed to joist or purlin with 12 x 60 type 17 roofing screw 2 x 16mm Boral 35mm min. o o 0 to 70 Roofing or floor Timber or steel framing member 3 x 16mm Boral Firestop Plasterboard Rondo P.N. 129 Furring 600mm max. centres 1 x 16mm Boral Rondo P.N. 247 Suspension Bracket screw fixed to furring channel with 12 x 40 type 17 roofing screw Acoustic ceiling total mass not to 2 exceed 4.95Kg/m for furred system Furred Direct Fastened Rondo P.N. 247 Suspension Bracket screw fixed to framing with 12 x 75 type 17 roofing screw Suspension 1200mm max.centres Acoustic ceiling total mass not to 2 exceed 12Kg/m for direct fastened system FRL 90/90/90 - System CS8

23 Cable and Loaded Penetrations 23 Batten as required Roofing or floor Framing Member Rondo P.N. 274 Suspension Bracket Cable Rondo P.N. 121 Suspension Rod Rondo P.N Suspension Clip Fyre Spring by Promat Fyreguard. Refer to Promat Fyreguard Pty Ltd. for details. Rondo P.N. 128 Top Cross Rail Rondo P.N. 139 Joiner 1, 2 or 3 layers of Boral Firestop Plasterboard as required Rondo P.N. 129 Furring Channel Promaseal Fire Mastic by Promat Fyreguard Cable Penetration Detail Batten as required Roofing or floor Framing Member Rondo P.N. 274 Suspension Bracket Rondo P.N. 121 Suspension Rod Rondo P.N Suspension Clip Rondo P.N. 128 Top Cross Rail Rondo P.N. 139 Joiner 1, 2 or 3 layers of Boral Firestop Plasterboard as required Two 100 x 100mm pieces of 16mm Boral Firestop with lower piece slotted for cable Cable Rondo P.N. 129 Furring Channel Cable set in Boral Cornice Adhesive or approved fire-rated sealant Alternative Cable Penetration Detail Batten Roofing or flooring Framing member Rondo P.N. 274 Suspension Bracket Rondo P.N. 121 Suspension Rod Steel Suspension Rod and Bracket to engineer s details Rondo P.N Suspension Clip Rondo P.N. 128 Top Cross Rail Rondo P.N. 139 Joiner 1, 2 or 3 Layers of Boral Firestop Plasterboard as required Rod set in Boral Cornice Adhesive or approved fire-rated sealant Rondo P.N. 129 Furring Channel 6-10mm gap Typical Loaded Penetration Details

24 24 Pipe Penetrations Batten Framing member Rondo P.N. 274 Suspension Bracket Rondo P.N. 121 Suspension Rod Rondo P.N Suspension Clip 520mm Roofing or flooring Cage by Promat Fyreguard (refer to Promat Fyreguard tests) 50 x 20mm Promaseal IBS by Promat Fyreguard Rondo P.N. 129 Furring Channel Promaseal Fire Mastic by Promat Fyreguard Rondo P.N. 128 Top Cross Rail 13mm max. 15mm min. Rondo P.N. 139 Joiner 1 or 2 layers of Boral Firestop Plasterboard as required A A View AA 100mm max. diam. Copper Pipe Typical Copper Pipe Penetration Detail - FRL 30/30/30 and FRL 60/60/60 Batten Rondo P.N. 274 Suspension Bracket Rondo P.N. 121 Suspension Rod Roofing or flooring Framing member upvc Pipe independently supported above ceiling Rondo P.N Suspension Clip Rondo P.N. 128 Top Cross Rail Rondo P.N. 139 Joiner 1, 2 or 3 layers of Boral Firestop Plasterboard as required Steel Toggle Bolt Rondo P.N. 129 Furring Channel Retrofit Fyre Collar by Promat Fyreguard. Refer to Promat Fyreguard Pty Ltd. for details. Typical PVC Pipe Penetration Detail Batten Rondo P.N. 274 Suspension Bracket Roofing or flooring Framing member Rondo P.N. 121 Suspension Rod Rondo P.N Suspension Clip Rondo P.N. 128 Top Cross Rail Rondo P.N. 139 Joiner 1, 2 or 3 layers of Boral Firestop Plasterboard as required Water pipe independently supported above ceiling Approved fire grade sealant Rondo P.N. 129 Furring Channel Sprinkler head Typical Sprinkler Pipe Penetration Detail

25 Ceilings to a Radius 25 Batten as required Roofing or flooring Framing member Rondo P.N. 274 Suspension Bracket Rondo P.N. 121 Suspension Rod Rondo P.N Suspension Clip Rondo P.N. 129 Furring Channel 6-10mm Suitable screw to prevent suspension clip sliding up Top Cross Rail Rondo P.N. 128 Top Cross Rail or steel angle by others rolled to required radius Rondo P.N. 139 Joiner riveted to Top Cross Rail Caulk all perimeter junctions with Boral Cornice Adhesive 6000mm min. radius to face of plasterboard 1, 2 or 3 layers of Boral as required Taped Joint

26 26 Change of Pitch Batten as required Rondo P.N. 121 Suspension 1200mm centres max. Roofing or flooring Framing member Rondo P.N. 274 Suspension Bracket Angle Cleat Rondo P.N Suspension Clip Continuous Angle 0.75 B.M.T. Galv. M.S. 50mm min. leg length Rondo P.N. 139 Joiner pop riveted to Top Cross Rail 1, 2 or 3 layers of Boral as required 600mm max. 20mm max Detail A Rondo P.N. 128 Top Cross Rail Rondo P.N. 139 Joiner Rondo P.N. 129 Furring Channel Cornice Adhesive Tape and set joint Batten as required Roofing or flooring Rondo P.N. 274 Suspension Bracket Rondo P.N. 121 Suspension 1200mm centres max. Angle Cleat Continuous Angle 0.75 B.M.T. Galv. M.S. 50mm min. leg length Framing member Rondo P.N Suspension Clip Rondo P.N. 128 Top Cross Rail Rondo P.N. 139 Joiner pop riveted to Top Cross Rail Rondo P.N. 129 Furring Channel 1, 2 or 3 layers of Boral as required Cornice Adhesive 20mm max. 600mm max. Tape and set joint Detail B Batten as required Roofing or flooring Framing member Rondo P.N. 274 Suspension Bracket Rondo P.N. 121 Suspension 1200mm centres max. Rondo P.N Suspension Clip Angle Cleat Continuous Angle 0.75 B.M.T. Galv. M.S. 50mm min. leg length Tape and set joint 20mm max mm max. Detail C Suitable screw on high side of each clip to prevent suspension clip sliding up Top Cross Rail Rondo P.N. 139 Joiner riveted to Top Cross Rail Rondo P.N. 128 Top Cross Rail Rondo P.N. 129 Furring Channel 1, 2 or 3 layers of Boral as required Cornice Adhesive

27 Bulkheads 27 Framing Member Rondo P.N. 274 Suspension Bracket Rondo P.N.121 Suspension Rod Additional Rondo P.N.121 Suspension Rod Rondo P.N Suspension Clip 25 x 25 x 0.75mm BMT Galvanised Angle pop rivetted to Top Cross Rail Rondo P.N. 128 Top Cross Rail 1, 2 or 3 layers of Boral as required 600mm max. drop Roofing or flooring Rondo P.N Suspension Clip Rondo P.N. 139 Joiner pop rivetted to Top Cross Rail Rondo P.N. 128 Top Cross Rail Rondo P.N. 129 Furring Channel 50mm x 50mm x 0.75mm Galvanised Steel Angle Rondo P.N. 129 Furring Channel Typical Bulkhead - Detail A Corner Bead if Required Framing Member Rondo P.N. 121 Suspension Rod Additional Rondo P.N. 121 Suspension Rod Roofing or flooring Rondo P.N. 274 Suspension Bracket Rondo P.N Suspension Clip 75 x 75 x 0.75mm BMT Continuous Galvanised Steel Angle Rondo P.N. 129 Furring Channel Rondo P.N. 128 Top Cross Rail Rondo P.N. 139 Joiner Rondo P.N. 129 Furring Channel 1, 2 or 3 layers of Boral as required Typical Bulkhead - Detail B 600mm max. drop Corner Bead if Required

28 28 Bulkheads Skylight Dome Skylight Framing Flashing Roofing as required Upstand Framing Roof Battens Timber or Steel Stud 600mm centres Rondo P.N. 274 Suspension Bracket Framing Member Rondo P.N. 121 Suspension Rod 600mm max. drop 1, 2 or 3 layers of Boral as required Rondo P.N Suspension Clip Rondo P.N. 128 Top Cross Rail Rondo P.N. 139 Joiner Rondo P.N. 129 Furring Channel 1, 2 or 3 layers of Boral as required 600mm max. centres 50 x 50 x 0.75mm continuous galv. Steel Angle External Corner Bead if required Typical Bulkhead/Lightwell Detail

29 Light Recess 29 Flooring or Roof Framing Member Rondo P.N. 121 Suspension Rod spaced to support any additional mass due to light fitting Rondo P.N Suspension Clip Rondo P.N. 129 Furring Channel 1, 2 or 3 layers of Boral as required 450mm 100mm Rondo P.N. 274 Suspension Bracket Rondo P.N. 302 Light Stirrup Light Fitting Box Rondo P.N. 128 Top Cross Rail Support Mounting Typical Light Recess - Detail A 50mm x 50mm x 0.75mm Galvanised Steel Angles Timber Floor Trimmer 1, 2 or 3 layers of Boral as required Floor Joist Trimmer Light Fitting Typical Light Recess - Detail B Floor or Ceiling Structure Rondo P.N. 121 Suspension Rod spaced to support any additional mass due to light fitting Rondo P.N Suspension Clip 50 x 50 x 0.75mm Angle fixed to Stud and Top Cross Rail Rondo P.N. 139 Joiner 1, 2 or 3 layers of Boral as required 75 x75 x 0.75mm Galv. Steel Angle 100mm 50 x 50 x 0.75mm Galv. Steel Angle Typical Light Recess - Detail C Rondo P.N. 274 Suspension Bracket Additional Rondo P.N. 121 Suspension Rod 64CS Stud 600mm centres Rondo P.N. 128 Top Cross Rail Rondo P.N. 129 Furring Channel Light Fitting Box Support Mounting

30 30 Access Hatch Additional Top Cross Rail Rondo P.N. 129 Furring Channel 670mm lengths of Top Cross Rail Ceiling Furring Channel A B B A 750mm 900mm 50 mm 540mm 400mm 50 mm 600mm 2 x 13mm Boral Section B-B 1, 2 or 3 layers of Boral Firestop Plasterboard as required 50 mm 390mm 300mm 50 mm 450mm 670mm Section A-A Typical Access Hatch - Detail A

31 Access Hatch 31 Batten as required 1, 2 or 3 layers of Boral as required FRL 30/30/30 and FRL 60/60/60: 1 layer 16mm Boral FRL 90/90/90 and FRL 120/120/120: 2 layers 16mm Boral Roofing or flooring Framing member Frame around opening with 25mm x 25mm x 0.75 Galvanised Steel Angle 10 x 38 Type L 200mm max. centres Roofing or flooring Framing member Rondo P.N. 274 Suspension Bracket Rondo P.N. 121 Suspension 1200mm centres max. Rondo P.N Suspension Clip Rondo P.N. 128 Top Cross Rail Rondo P.N. 139 Joiner 1, 2 or 3 layers of Boral as required 3mm gap Max. 500 x 500 Panel Rondo P.N. 129 Furring Channel External Corner Beads if required Typical Access Hatch - Detail B Roofing or flooring Framing member 75mm x 1mm thick Steel Section spot welded to 200mm max. centres Type S 200mm centres securing Access Hatch Assembly to 64mm Track Section Rondo P.N. 274 Suspension Bracket Rondo P.N. 121 Suspension 1200mm centres max. Access Hatch framed with Rondo 64CT Track or Timber Section min. 100mm x 50mm fixed to ceiling /roof framing Rondo P.N Suspension Clip Promat Fyreguard Access Hatch max. 500 x 700mm 64mm Track Section framing opening fixed to Furring Channel with 25mm Type S 200mm centres Rondo P.N. 128 Top Cross Rail Type S 200mm centres securing Plasterboard to 64mm Track Section Rondo P.N. 139 Joiner FRL 30/30/30:1 x 16mm Boral FRL 60/60/60:2 x 16mm Boral Rondo P.N. 129 Furring Channel Promat Fyreguard Access Hatch max. 500 x 700mm Corner bead Typical Access Hatch - Detail C (for up to FRL 60/60/60) Refer to Promat Fyreguard Pty. Ltd. for installation details.

32 32 Beam Protection Roofing or Flooring Steel Beam Rondo P.N. 129 Furring Channel 1, 2 or 3 layers of Boral Firestop Plasterboard as required Framing member Rondo P.N. 226 or 394 Direct Fixing Clip 50 x 50 x 0.75mm or 75 x 75 x 0.75mm continuous Galv. Steel Angles as required 1, 2 or 3 layers of Boral Firestop Plasterboard as required Corner Bead if required 50 x 50 x 0.75mm continuous Galv. Steel Angles Note: Vertical plasterboard fixed as per ceiling Typical Steel Beam Protection Detail Furring Channel 600mm centres Roofing or Flooring Rondo P.N. 129 Furring Channel Rondo P.N. 226 or 394 Direct Fixing Clip Framing 600mm centres 1, 2 or 3 layers of Boral Firestop Plasterboard as required Steel Beam Corner Beads if required 1, 2 or 3 layers of Boral Firestop Plasterboard as required Type S screws as 200mm max. centres 50 x 50 x 0.75mm or 75 x 75 x 0.75mm continuous Galv. Steel Angles as required Furring Channel 600mm centres 50 x 50 x 0.75mm continuous Galv. Steel Angles Typical Steel Beam Protection Detail - Perspective View

33 Beam Protection 33 Timber Floor Timber Beam 50 x 50 x 0.75mm or 75 x 75 x 0.75mm continuous Galv. Steel Angles as required Framing member Rondo P.N. 226 or 394 Direct Fixing Clip Rondo P.N. 129 Furring Channel 1, 2 or 3 layers of Boral Firestop Plasterboard as required 1, 2 or 3 layers of Boral Firestop Plasterboard as required - max. span of 600mm for ceiling layers Corner Bead if required 50mm min. Plasterboard Nails as 200mm centres Typical Timber Beam Protection - Furred System Type S screws as 200mm max. centres Framing max. 600mm centres Roofing or Flooring Rondo P.N. 226 or 394 Direct Fixing Clip 1, 2 or 3 layers of Boral Firestop Plasterboard as required Corner Beads if required Rondo P.N. 129 Furring Channel 50 x 50 x 0.75mm or 75 x 75 x 0.75mm continuous Galv. Steel Angles as required 1, 2 or 3 layers of Boral Firestop Plasterboard as required Plasterboard Nails as 200mm centres Typical Timber Beam Protection - Perspective View - Furred System Timber Beam

34 34 Beam Protection Timber Floor Framing member Timber Beam of not less than 500kg/m3 average density 50 x 50 x 0.75mm or 75 x 75 x 0.75mm continuous Galv. Steel Angles as required 1, 2 or 3 layers of Boral Firestop Plasterboard as required 1, 2 or 3 layers of Boral Firestop Plasterboard as required - max. span of 600mm for ceiling layers Corner Bead if required 50mm min. Typical Timber Beam Protection - Direct Fixed System Plasterboard Nails as 200mm centres Roofing or Flooring Framing max. 600mm centres 1, 2 or 3 layers of Boral Firestop Plasterboard as required Corner Beads if required 50 x 50 x 0.75mm or 75 x 75 x 0.75mm continuous Galv. Steel Angles as required 1, 2 or 3 layers of Boral Firestop Plasterboard as required Plasterboard Nails as 200mm centres Typical Timber Beam Protection - Perspective View - Direct Fixed System Timber Beam of not less than 500kg/m3 average density

35 Joints 35 Roofing or flooring Framing member Rondo P.N. 274 Suspension Bracket Rondo P.N. 121 Suspension 1200mm max. centres Minimum 6 x 50 Type L screws to one side 200mm max. centres 1, 2 or 3 layers of Boral Firestop Plasterboard as required FRL 30/30/30: 1 x 16mm Boral. FRL 60/60/60 and FRL 90/90/90: 2 x 16mm Boral Firestop Plasterboard. Rondo P.N. P35 Expansion Joint Bead if required 100mm max. 120mm 50mm 20mm max. 20 mm View parallel to Furring Channel Rondo P.N Suspension Clip Rondo P.N. 128 or 127 Top Cross Rail Rondo P.N. 139 Joiner Rondo P.N. 129 Furring Channel FRL 30/30/30: 1 x 16mm Boral. FRL 60/60/60 and FRL 90/90/90: 2 x 16mm Boral Firestop Plasterboard. Rondo P.N. 139 Joiner 1, 2 or 3 layers of Boral Firestop Plasterboard as required 120mm 50mm 20mm max. 20 mm View perpendicular to Furring Channel Rondo P.N Suspension Clip Rondo P.N. 128 or 127 Top Cross Rail Rondo P.N. 129 Furring Channel Typical Movement Joint Detail Type L 200mm centres Framing 1, 2 or 3 layers of Boral Firestop Plasterboard as required Approved fire grade sealant mm Note: 1. Locate joint centrally between framing members when parallel to framing. 2. Minimum of one layer of Boral continuous over joint. 3. Ensure single layer system is back blocked. Typical Control Joint Detail

36 36 Perimeter Details Roofing or flooring Batten as required Rondo P.N. 274 Suspension Bracket Framing member Rondo P.N. 121 Suspension 1200mm max. centres Rondo P.N Suspension Clip Rondo P.N. 128 Top Cross Rail Continuous Rondo P.N. 553 Angle or Steel Stud fastened to 600mm max. centres 6-10 mm 100mm max. Rondo P.N. 139 Joiner Rondo P.N. 129 Furring Channel Approved Sealant 1 x 16mm Boral 6-10 mm 100mm max. 1 x 16mm Boral Boral Cornice Adhesive Plasterboard Cornice or taped square set finish Alternative Detail Typical Perimeter Detail - FRL 30/30/30

37 Perimeter Details 37 Batten as required Rondo P.N. 274 Suspension Bracket Roofing or flooring Framing member Rondo P.N. 121 Suspension 1200mm max. centres Rondo P.N Suspension Clip Rondo P.N. 128 Top Cross Rail Continuous Rondo P.N. 553 Angle or Steel Stud fastened to 600mm max. centres 6-10 mm 100mm max. Rondo P.N. 139 Joiner Rondo P.N. 129 Furring Channel Boral Cornice Adhesive or Ceramic Fibre Blanket or approved sealant 2 or 3 layers of Boral Firestop Plasterboard as required See Alternative Details below Plasterboard Cornice or taped square set finish 2 or 3 layers of Boral as required 6-10mm Rondo P.N. 554 Angle 22mm Promaseal IBS by Promat Fyreguard Rondo P.N. DU05 Wall Trim 10mm Rondo P.N. P50 Shadowline Trim Wall Trim Shadowline Trim 25 x 25mm fillet of Cornice Adhesive 100mm max. Framing 6-10 mm Top Plate 45mm thick 3-10mm 16mm max. 2 or 3 layers of Boral as required 90mm Plasterboard Cornice Plasterboard Cornice 5mm max. o/hang 25 x 25mm fillet of Cornice Adhesive 10mm Boral Standard Core Plasterboard Plasterboard Cornice Detail A Plasterboard Cornice Detail B Cornice Adhesive Typical Perimeter Detail - FRL 60/60/60

38 38 Perimeter Details Roofing or flooring Rondo P.N. 274 Suspension Bracket Framing member Rondo P.N. 121 Suspension 1200mm max. centres Rondo P.N Suspension Clip Rondo P.N. 128 Top Cross Rail Continuous Rondo P.N. 553 Angle or Steel Stud fastened to 600mm max. centres Approved fire-rated sealant 600mm max. 6-10mm Rondo P.N. 139 Joiner Rondo P.N. 129 Furring Channel Optional Plasterboard Cornice or taped square set finish 3 x 16mm Boral 100mm max. 6-10mm Framing Cornice Adhesive 3 x 16mm Boral Plasterboard Cornice or taped square set finish Alternative Detail Typical Perimeter Detail - FRL 90/90/90

39 Non Standard Ceilings Design Introduction Boral Plasterboard Non Fire-Rated Ceiling Systems provide a variety of application configurations using 1 layer of 10mm or 13mm Boral Plasterboard Standard Core or 10mm Boral Unispan fixed as a Suspended, Direct Fixed or Furred System. Note: These ceiling construction details are not suitable for external ceilings. Thermal or acoustic insulation (max. 3kg/m 2 ) may be placed above ceiling. Early Fire Hazard Properties Boral Plasterboard Standard Core, tested for early fire hazard properties in accordance with Australian Standard , recorded the following results: Ignitability (0-20) -14; Smoke Developed (0-10) -2; Spread of Flame (0-10) -0; Heat Evolved (0-10) -1. Component Mass One layer of 10mm Boral Standard Core Plasterboard has a mass of approximately 6.5kg/m 2 ; One layer of 13mm Boral Standard Core Plasterboard has a mass of approximately 8.5kg/m 2 ; One layer of 10mm Boral Unispan Plasterboard has a mass of approximately 6.7kg/m 2 ; Rondo Furring Channel Part No. 129 has a mass of approximately 0.5kg/m; Rondo Top Cross Rail Part No. 128 has a mass of approximately 0.7kg/m. Systems Mass The following table shows mass calculations based on the above approximations: Plasterboard Layers 1 x 10mm 1 x 13mm 1 x 10mm Unispan Decoration Plasterboard Mass 6.5kg/m 2 8.5kg/m 2 6.7kg/m 2 Suspension System Mass* 8.5kg/m kg/m 2 8.7kg/m 2 * The suspension system mass is approximate only and based on a Rondo steel suspension system with Top Cross 1200mm centres, Furring 600mm max. centres (450mm max. centres for 10mm Standard Core Plasterboard) and an average drop. The ceiling system is flush jointed to provide a smooth, continuous surface ideal for all forms of decoration. Care must be taken to apply paint or other finishes strictly in accordance with the Manufacturer s instructions. General Construction Details 39 Movement joints should be put at building construction joint locations. Control joints should be spaced at not more than 12 metre max. centres in either direction or 15 metre centres where there is perimeter relief. Where necessary specify a furred system to minimise the risk of ceiling damage due to frame movement caused by structural, thermal and seasoning effects. Caution: Boral Plasterboard ceiling systems are not designed to support the weight of maintenance personnel, additional plant or storage of goods. Materials 10mm or 13mm Boral Plasterboard Standard Core or 10mm Boral Unispan. Boral Plasterboard Jointing Compound (as preferred from the Boral Plasterboard Jointing Compound range). Boral Plasterboard Cornice 55mm, 75mm & 90mm if required, applied using Boral Plasterboard Cornice Adhesive or Cornice Adhesive Mid Set. Boral Plasterboard Stud Adhesive. Perforated paper tape. An approved caulking compound for caulking gaps at ceiling perimeters. Screws and nails as specified. Rivets (all steel). Refer to Safety Data Sheets (available from Boral Plasterboard Sales Offices) or the container labelling, when handling relevant products. All materials must be carefully stored and protected on the construction site. Damaged plasterboard sheets and accessory materials must not be used. Plasterboard is to be stacked flat and protected from moisture and must not be used where it will be exposed to excessive moisture. Rondo Fixing and Suspension Components Manufactured by Rondo Building Services Ltd. and marketed by Boral Plasterboard: Furring Channel Top Cross Rail Joiner to Top Cross Rail 237, 226, Direct Fixing Clips 247 or Suspension Bracket Suspension Rod Adjustable Suspension Clip P32 - Corner Bead All Steel Angle 35x35x All Steel Angle 50x50x0.75 P35 - Rondo Control Joint

40 Non 40 Standard Ceilings Design Fasteners Layers of Plasterboard x Thickness 1 x 10mm 1 x 13mm Layers of Plasterboard x Thickness 1 x 10mm 1 x 13mm Installation Smooth Shank Gold Passivated 40mm¹ 30mm² 40mm¹ 30mm² Nails - Timber Frame Annular Ring Shank and Uninail 30mm¹ 30mm² 30mm¹ 30mm² 1 = Softwood 2 = Hardwood Galvanised 2.8mm Diameter 40mm¹ 30mm² 40mm¹ 30mm² Screws - Timber Frame Screws - Steel Frame Type W Type S or Type D 6-9 x 32mm 6-9 x 32mm 6-18 x 25mm* 6-18 x 25mm* Screw identification is given as: (min. gauge) - (threads/inch ±1) x (min. length). * For ease of construction with framing steel gauges of less than 0.8mm BMT, use 30mm minimum length screws. Furring channel and framing supports to be taken to and provided within 50mm of ceiling perimeter - min 15mm end clearance to walls. Suspension Systems Attach suspension rods to suspension rod brackets that are anchored to structural framing or concrete soffit, at typically 1200mm centres in each direction. Note: Each suspension rod bracket fastening must be capable of supporting a weight of 143kg plus the self load of the system and pressure loads. Attach suspension clips to top cross rails, and fit suspension clips to rods. Adjust the rails to a true and level plane. Position furring channels at 600mm maximum centres (see note) and attach to top cross rails with a locking clip at each intersection. Join lengths of furring channel with furring channel joiners, ensuring the joins are staggered. Extra suspension components must be provided to support light fittings, bulkheads and other fixtures. Spans and spacings may be reduced if required. Direct Clipped (Furred) Systems Position furring channels at 600mm maximum centres (see note) and attach channels to structural framing with direct fixing clips at typically 1200mm centres, or to concrete soffit with anchor clips fastened to soffit at typically 1200mm centres. Ensure that furring channels are fixed to a true and level plane. Longer spans may be used - refer to Manufacturer's details. Direct Fixed Systems Where fixing direct to timber or steel framing without furring channel, framework should not exceed 600mm spacing (see note). Spans and spacings may be reduced if required. Note: Furring channel spacing to be 450mm for 10mm Standard Core Plasterboard. Plasterboard Application Plasterboard may be fixed with nails, screws or a combination of adhesive and fasteners. A combination of adhesive and fasteners is the preferred method for general application. Fix Boral Plasterboard across the Furring Channel, Timber or Steel framing. Butt or end joints not formed on framing members should be back-blocked as described under "Back-blocking". Tape and finish with preferred Boral Plasterboard jointing system. Adhesive/ Fastener Fixing Apply Boral Plasterboard Stud Adhesive to framing members in daubs measuring 25mm diameter by 15mm high. Space daubs of adhesive at 230mm maximum centres. Keep daubs approximately 200mm away from the edges of the sheets and the nail or screw fixing points. Under slow-drying conditions, keep Boral Plasterboard sheets firm against the adhesive daubs for at least 48 hours. Use temporary blocks fastened through plasterboard to framing members. Be sure to fix Boral Plasterboard within thirty minutes of applying adhesive. This will avoid skin forming on the adhesive. For the number of nails or screws required, and their fixing points, refer to the following tables and illustrations. Adhesive and Fastener Layout Plasterboard Width 900mm 1200mm 1350mm Conventional Spacing FAF/FAF FAAF/FAAF FAAF/FAAF 1/3 Spacing FAFAF FAFAFAF FAFAFAF F = Nail or Screw A = Adhesive F/F = 2 Nails or 1 Screw All Mechanical Fixing Layout Minimum Fixing Points per Sheet Width Plasterboard Width 900mm 1200mm 1350mm Single Nails Double Nails or Single Screws 4 5 6

41 Non Standard Ceilings Design 41 4 daubs of adhesive, 25mm dia. x 15mm high, for sheets 1200mm and 1350mm wide C L Daubs of adhesive 200mm from edge of sheets 200mm Centre line of sheet C L C L 50-75mm 200mm Adhesive Fixing Fixing With Nails Only This method normally applies where adhesive cannot be used - e.g., over existing linings or over a water vapour barrier. Keep Boral Plasterboard sheets in firm contact with framing member while nails are being driven. Drive nail heads slightly below the surface of the sheet without puncturing the face linerboard. Along the perimeter of sheets, space nails at between 10mm minimum and 16mm maximum away from the edges and ends of the sheet. Skew-nailing is not permitted. For single nailing, space nails at 200mm maximum centres. For double nailing, space nails at 300mm maximum centres with single nails or single screws at perimeter only. Fixing With Screws Only Space screws at 300mm maximum centres in field of board and 200mm maximum centres on end joints (staggered). Space screws at 10mm - 16mm from the edges and ends. When screw-fixing single layers of Boral Plasterboard sheets: Hold plasterboard sheets firmly in place against the framing members while driving in the screws. Adjust screw gun correctly so as to drive the screw heads below the surface of the sheet without puncturing the face linerboard. Press tip of screw firmly into the face linerboard before driving it home. Always drive screws with the shank at right angles to the face of the sheets. Wherever possible always start from the centre of the sheet towards the outer edges. Position screws on adjacent edges opposite each other. Double Nailing Only: 50mm - 75mm apart at 300mm max. centres Centre line of sheets Screws Only: 300mm max. centres Single Nailing Only: 200mm max. centres C L C L C L Stagger butt joints between framing Along perimeter of sheet, single nails or single screws only at 10mm - 16mm from edge Screw or Nail Fixing

42 Non 42 Standard Ceilings Design Back-blocking Back-blocking is a mandatory fixing requirement where specified in the Australian Standard AS/NZS :1997. Failure to provide back-blocking installed as per AS/NZS :1997 may result in liability for any associated costs relating to maintenance and/or rectification caused by jointing defects. Back-blocking substantially reduces call-backs, in particular for cracking and peaking joints. Recessed Joints in Ceilings Any area containing three or more recessed joints must be back-blocked as follows (see Figure 1): Cut back-blocking pieces from Boral Plasterboard sheet to sizes no less than 200mm wide and in lengths that will fit loosely between the framing members. Prepare Boral Plasterboard Cornice Adhesive in a clean container with sufficient water to make a stiff paste of smooth consistency. Apply adhesive over the full face of the backblocking pieces using a notched spreader to form beads of 6mm x 6mm at approximately 20mm centres and at right angles to the joint. Fix Boral Plasterboard ceiling sheet transverse to framing members, placing the back-blocks centrally along the full length of the sheet's edge. Fix the next sheets immediately after the blocks are in place. Back-blocks in ceilings may be cemented into position from within the roof cavity using a more fluid adhesive mix and pouring it onto the top of the ceiling join before seating the back-blocks onto the adhesive. Back-blocking Ceilings Under Floors and Low-Pitched Roofs This can be carried out from the floor below, one step at a time as follows (see Figure 2): Fix the first Boral Plasterboard sheet. Cut the next sheet. Apply Boral Plasterboard Cornice Adhesive to back-blocks and place them between framing members along the full length of the sheet already fixed. Immediately after all blocks are in place, install the next sheet. Continue as above across the entire ceiling area. When complete, and the adhesive has thoroughly set, apply the flush-jointing. Back-blocks in place Boral Plasterboard ceiling Wall Ceiling joist or bottom chord of roof truss Figure 2. Back-blocking pieces of Boral Plasterboard sheet 200mm wide min. glued with Cornice Adhesive Back-blocking Butt Joints Back-block butt joints as follows (see Figure 3): Fix ceiling sheets with ends butted neatly together. The butt joint should fall within 50mm of the mid-span point between framing members. Use battens and packers to support and deflect the sheet ends upwards about 2mm. Boral Plasterboard ceiling Roof truss Figure 1.

43 Non Standard Ceilings Design Plasterboard Back-block Rafter or joist Cornice adhesive Temporary battens Packing strip Temporary nailing Figure 3. Back-blocking Dos & Don'ts Back-blocking must be installed at the fixing stage. Joints must not be set prior to backblocking. Do not use plaster in its advanced setting state or any dry mix compound for backblocking. Dry or partly dry compounds combined with ceiling temperatures may cause premature dry-out and reduced bond. Ensure back-blocking is completely dry prior to the taping process. Do not use stud adhesive for back-blocking. Back-blocking strips should not be tight between framing members. Architectural Specification 43 Boral Plasterboard Ceilings shown in the relevant drawings shall consist of materials supplied by Boral Plasterboard, fixed and finished in accordance with the instructions contained in Boral Plasterboard Technical Manuals and in TecSYS - a comprehensive technical catalogue on CD-ROM (see back cover for details). As drawings are updated from time to time, users are advised to check drawing currency before adopting the procedures and details noted thereon.

44 Non 44 System Selector System No. Fire-Rating FRL (mins) (Test Ref.) Description and Physical Data CS18 Non Fire Rated Ceiling OR OR Standard Design Roof or Floor Ceiling Systems - Suspended, Direct Fixed or Furred System provides a variety of application configurations using 1 layer of 10mm or 13mm Boral Plasterboard Standard Core or 10mm Boral Unispan fixed as a Suspended, Direct Fixed or Furred System. Suspended Systems OR Direct Fixed Systems OR Furred Channel Systems 1 layer of 10mm or 13mm Boral Plasterboard Standard Core or 10mm Boral Unispan fixed to a supporting framework of timber / steel at 600mm (450mm for 10mm Boral Plasterboard Standard Core) max. centres. - Plasterboard is fixed across supporting members - Longitudinal joints (along recessed edges) and Butt or End Joints not formed on framing members should be back blocked - Back blocks to be laminated with daubs of Cornice Adhesive - Fixing to framework to be as a follows: Fixed directly to timber / steel beams or purlins at 600mm (450mm for 10mm Boral Plasterboard Standard Core) max. centres - or - Fixed to furring channel system at 600mm max. centres that has been -( a) clipped or direct fixed to a steel or timber floor / ceiling frame at 1200mm max. centres - or - (b) clipped to top cross rails at 1200mm max. centres supported by suspension rod system hung from a conc. soffit, steel or timber floor / ceiling frame. Flooring over - Concrete Slab or min. 12mm plywood or particle board fixed direct to frame. Roofing over -Concrete Slab, Tile, Aluminium or Steel profiled section fixed to battens or frame.

45 Non Standard Construction 45 Direct Fixed Systems Roofing or floor 35mm min. 1 layer of 10mm or 13mm Boral Standard Core Plasterboard or 10mm Boral Unispan OR Steel or timber floor or ceiling framing member with or without steel 600mm max. centres (450mm max. centres for 10mm Standard Core Plasterboard). Back blocks laminated to face sheet with cornice adhesive on all longitudinal joints and on butt or end joints Note: All joints not formed on a framing member must be back blocked End joints formed on framing members and staggered Timber or steel roof or floor 600mm max. centres (450mm max. centres for 10mm Standard Core Plasterboard). 200mm 300mm Tape and finish with preferred Boral Plasterboard system Screws 10mm to 16mm from edges 1 layer of 10mm or 13mm Boral Standard Core Plasterboard or 10mm Boral Unispan fixed transverse to ceiling joists. Screw fastening is illustrated using min. 6 x 32 Type W screws for timber or 6 x 25 Type S or Type D screws for steel. Screws to be max. 300mm centres in field and 200mm max. centres on end joints (staggered). Refer to Plasterboard Application on Page 40 for details of adhesive or nail fixing.

46 Non 46 Standard Construction Direct Clipped (Furred) Systems Roofing or floor 35mm min. Steel or timber floor or ceiling frame Rondo P.N mm max. centres fastened Rondo P.N. 226 or 394 to steel framing member with 600mm max. centres fastened min. two 10 x 16 Type D to timber framing member with screws or equivalent OR min. two 2.8 x 30 plasterboard nails or equivalent Rondo P.N. 129 Furring 600mm max. centres (450mm max. centres for 10mm Standard Core Plasterboard). 1 layer of 10mm or 13mm Boral Standard Core Plasterboard or 10mm Boral Unispan Back blocks laminated to face sheet with cornice adhesive on all longitudinal joints and on butt or end joints Rondo P.N. 129 Furring 600mm max. centres (450mm max. centres for 10mm Standard Core Plasterboard). Note: All joints not formed on a Furring Channel must be back blocked Timber or steel roof or floor 1200mm max. centres End joints formed on Furring Channels and staggered Rondo P.N. 226 or mm max. centres 300mm 200mm Tape and finish with preferred Boral Plasterboard system 1 layer of 10mm or 13mm Boral Standard Core Plasterboard or 10mm Boral Unispan fixed transverse to Furring Channels Screws 10mm to 16mm from edges Screw fastening is illustrated using min. 6 x 25 Type S or Type D screws. Screws to be max. 300mm centres in field and 200mm max. centres on end joints (staggered). Refer to Plasterboard Application on Page 40 for details of adhesive or nail fixing.

47 Non Standard Construction 47 Suspended Systems Rondo P.N. 247 Suspension Bracket anchored to concrete soffit to engineer s detail Rondo P.N Clip Rondo P.N. 129 Furring 600mm max. centres (450mm max. centres for 10mm Standard Core Plasterboard) Rondo P.N. 274 Suspension Bracket fastened to steel member with min. two 10 x 16 Type D screws or equivalent Rondo P.N. 121 Suspension 1200mm max. centres OR OR 1 layer of 10mm or 13mm Boral Standard Core Plasterboard or 10mm Boral Unispan 35mm min. Roofing or floor Steel or timber floor or ceiling frame Rondo P.N. 274 Suspension Bracket fastened to timber framing with min. two 2.8 x 30 plasterboard nails or equivalent Rondo P.N. 128 Top Cross 1200mm max. centres Rondo P.N. 139 Joiner Back blocks laminated to face sheet with cornice adhesive on all longitudinal joints and on butt or end joints Note: All joints not formed on a Furring Channel must be back blocked 1200mm typical Rondo P.N. 121 Suspension 1200 mm typical centres Rondo P.N. 128 Top Cross 1200mm typical centres Rondo P.N Suspension Clip 1200mm typical Rondo P.N. 139 Joiner Rondo P.N. 129 Furring 600mm max. centres (450mm max. centres for 10mm Standard Core Plasterboard) 300mm 200mm Tape and finish with preferred Boral Plasterboard joining system 1 layer of 10mm or 13mm Boral Standard Core Plasterboard or 10mm Boral Unispan fixed transverse to Furring Channels Screws 10mm to 16mm from edges Screw fastening is illustrated using min. 6 x 25 Type S or Type D screws. Screws to be max. 300mm centres in field and 200mm max. centres on end joints (staggered). Refer to Plasterboard Application on Page 40 for details of adhesive or nail fixing.

48 Non 48 Typical Perimeter and Bulkhead Details Rondo P.N. 129 Furring Channel Rondo P.N. 127 Top Cross Rail Rondo P.N. 139 Joiner Rondo P.N Suspension Clip Rondo P.N. 139 Joiner Rondo P.N. 121 Suspension Rod Pop rivet Boral Plasterboard Cornice 1 layer of 10mm or 13mm Boral Plasterboard Standard Core or 10mm Boral Unispan as required Continuous Galvanised Steel Angle Pop rivet Rondo P.N. 127 Top Cross Rail Rondo P.N. 129 Furring Channel Corner Bead if required Rondo P.N. 129 Furring Channel Rondo P.N. 127 Top Cross Rail Rondo P.N. 139 Joiner 1 layer of 10mm or 13mm Boral Plasterboard Standard Core or 10mm Boral Unispan as required Wall angle trim 1 layer of 10mm or 13mm Boral Plasterboard Standard Core or 10mm Boral Unispan as required Rondo P.N.121 Suspension Rod Rondo P.N. 127 Top Cross Rail Rondo P.N. 139 Joiner pop rivetted to Top Cross Rail Typical Perimeter Details Rondo P.N. 129 Furring Channel Rondo P.N Suspension Clip Galvanised Angle pop rivetted to Top Cross Rail Corner Bead if required 1 layer of 10mm or 13mm Boral Plasterboard Standard Core or 10mm Boral Unispan as required Typical Bulkhead Details

49 QuietZone Ceiling Systems Introduction Introduction The QuietZone systems have been designed to reduce unwanted noise from specific areas of a home. There are three QuietZone ceiling systems designed to suit varying budgets and design considerations - these three systems are identified as "Quiet", "Quieter" and "Quietest". Building a QuietZone ceiling requires a little more care and attention to detail than standard systems. Each component in a QuietZone System must be securely fixed, necessary services strategically placed and all plasterboard perimeter edges and openings adequately sealed. Note: QuietZone is a registered trademark of Amatek Limited trading as Insulation Solutions. Boral Acoustic Ceiling Mount The Boral Acoustic Ceiling Mount is used in the QuietZone systems and provides a cost effective solution to impact sound insulation for ceilings direct fixed or suspended to either concrete soffits, timber floor joists, roof purlins and the like. The Acoustic Ceiling Mount significantly reduces transmission of impact sound from many common sources including: footfalls; rain; and equipment Other typical applications for the Boral Acoustic Ceiling Mount are in multi-residential apartment construction, cinemas, and areas below a plant room. Advantages Easy and quick to install; Suspended application does not need additional fixings; Acoustic Ceiling Mount can be slid along the top cross rail which allows for easy repositioning; Minimises low frequency thumps generated from footfalls on timber floors; Fully tested; Rubber Element is colour coded for easy identification of load range; and High load capacity minimises number of Acoustic Ceiling Mounts required per square metre. Installation Ceiling Support Structure Furring Channel Clip Rubber Element showing colour coding dot Fixing Screw (with 25mm dia. Steel washer where fire rating required) Rondo Furring Channel 49 The Boral Acoustic Ceiling Mount is designed for use in Rondo's Key-Lock Ceiling Suspension System. Refer to the Rondo catalogue for the spanning and spacing options for furring channels and primary rails. Direct Fix Application Components Furring Channel Clip; Rubber Element; and Screw (supplied by others): x min. 65 mm Type 17 roof screw into timber; - 12 or 14 gauge x min. 45 mm drill point roofing screw into light gauge steel; or - Tapcon screw into concrete. Procedure Assemble the mount as shown in the following illustration. 1. Screw fix the mount via the central hole in the rubber element. For fire-rated ceilings, a 25 mm diameter x 2 mm steel washer is required under the fastener head. 2. Use a suitable power tool with an appropriate hex driver and tighten the fastener to a point where there is no compression of the rubber element. Check the pull-out capacity of fastener to ensure correct size is selected. 3. Clip furring channel into the Furring Channel Clip.

50 QuietZone Ceiling Systems 50 Acoustic Ceiling Mount Suspended Application Components Furring Channel Clip Interchange Clip Rubber Element Procedure Assemble the mount as shown in the following illustration. Rondo Top Cross Rail Furring Channel Clip Rubber Element showing colour coding dot Interchange Clip Rondo Furring Channel 1. Clip the Interchange Clip into the Top Cross Rail. 2. Clip furring channel into the Furring Channel Clip. Load Ratings For both applications, the rubber element comes in a variety of load bearing capacities and is colour coded accordingly. The appropriate element must be used to support the weight of plasterboard being used in the ceiling. As each layer of plasterboard is fixed to the furring channel, the rubber element will deflect under the load. A maximum deflection of 5 mm will result when the maximum load, as indicated in the following table, is reached. Allowance should be made for deflection when setting out ceiling heights. Colour Coding Blue dot White dot Performance Max. Load in kg Static Deflection 5mm 5mm The Boral Acoustic Ceiling Mount has been acoustically tested for airborne and impact sound insulation in both the direct fix and the suspended application. Acoustic ratings for the assembly details illustrated below are shown in the following table. Plasterboard Fixing Floor Covering R w IIC Direct to joist Bare Direct via Boral Acoustic Ceiling Mount Direct via Boral Acoustic Ceiling Mount Suspended via Boral Acoustic Ceiling Mount Suspended via Boral Acoustic Ceiling Mount Bare Carpet and underlay Bare Carpet and underlay x 45mm F7 timber 450mm centres 19mm thick chipboard floor sheeting Boral Acoustic Ceiling Mount direct fixed to or suspended from joists ACI R2.5 glasswool blanket Furring Channel clipped into Acoustic Ceiling 600 mm max. centres Assembly Details FRL 60/60/60 Two layers 16mm Boral Firestop plasterboard fixed to furring channel Note: An FRL 90/90/90 system is also available using 2 layers of enhanced firegrade plasterboard. Contact your Boral Plasterboard Sales Office for details.

51 QuietZone Ceiling Systems Acoustic Selector 51 QZ4 System Number and Assembly Details A bare floor (A) or with a covering of carpet and underlay (B) or with ceramic tiles on cement sheet (C) - on 190mm x 35mm timber floor 450mm or 600mm centres. Furring channel fixed with "blue dot" Acoustic Ceiling Mounts (1) to underside of every third joist spaced at 450mm or every second joist spaced at 600mm. 1 layer of 10mm Boral Plasterboard SoundStop screw fixed to furring channel. Insulation in floor/ceiling cavity. Joints finished. Perimeters acoustically sealed. A B C Floor Covering A B C Floor/ Ceiling Depth mm Rating With Insulation (Test Ref.) R w IIC (AO100) (AO100) (AO100) * (AO100) (AO100) (AO100) Insulation 75 mm Noise Control Batts (glass nominal 14 kg /m 3 ) Quiet Ceiling System QZ5 A bare floor (A) or with a covering of carpet and underlay (B) or with ceramic tiles on cement sheet (C) - on 190mm x 35mm timber floor 450mm or 600mm centres. Furring channel fixed with "blue dot" Acoustic Ceiling Mounts (1) to underside of every third joist spaced at 450mm or every second joist spaced at 600mm. 2 layers of 10mm Boral Plasterboard SoundStop - first layer screw fixed to furring channel, second layer adhesive/screw fixed to first layer. Insulation in floor/ceiling cavity. Joints finished. Perimeters acoustically sealed. A B C A B C (AO100) (AO100) (AO100) (AO100) (AO100) (AO100) 75 mm Noise Control Batts (glass nominal 14 kg /m 3 ) Quieter Ceiling System QZ6 A bare floor (A) or with a covering of carpet and underlay (B) or with ceramic tiles on cement sheet (C) - on 190mm x 35mm timber floor 450mm or 600mm centres. 2 layers of 10mm Boral Plasterboard SoundStop to underside of floor between joists and held in place with cleats nailed to side of joists. Furring channel fixed with "blue dot" Acoustic Ceiling Mounts (1) to underside of every third joist spaced at 450mm or every second joist spaced at 600mm. 2 layers of 10mm Boral Plasterboard SoundStop - first layer screw fixed to furring channel, second layer adhesive/screw fixed to first layer. Insulation in floor/ ceiling cavity. Joints finished. Perimeters acoustically sealed. A B C (AO100) (AO100) (AO100) (AO100) (AO100) (AO100) 75 mm Noise Control Batts (glass nominal 14 kg /m 3 ) A B C Quietest Ceiling System * The Impact Insulation Class (IIC) shown as a single number representing impact insulation. (1) Resilient channel, at 450mm centres directly fixed to underside of joists, may be used instead of furring channel fixed with acoustic ceiling mounts. Use of resilient channel will result in lower R w and IIC ratings.

52 QuietZone Ceiling Systems 52 QuietZone Installation Quiet Ceilings The "Quiet" ceiling system consists of one sheet of 10mm Boral Plasterboard SoundStop fixed to underside of floor/ceiling joists with Furring Channel (Rondo P.N.129) and Boral Plasterboard Acoustic Ceiling Mount. Fix Furring Channel to ceiling joists at 450mm centres. For joists at 450mm centres, fix ceiling mount to every third joist. For joists at 600mm centres, fix ceiling mount to every second joist. Conventionally fasten single layer of Boral SoundStop to Furring Channel with combination stud adhesive and supplementary fasteners. Apply stud adhesive at 230mm max. centres across sheet width, 200mm from edges of sheets and screw points. Screw fasten plasterboard at sheet edges (10-16mm from edge) and along centreline of sheet to each Furring Channel. Floor/ceiling cavity is filled with 75mm noise control batts. QuietZone performance R w 50 - Loud speech can be heard but not understood. IIC 62 - With floor covering of carpet and underlay, walking is heard as low thump. For ceiling 450mm centres, fix ceiling mount to every third joist. For 600mm centres, fix ceiling mount to every second joist. Flooring Floor joists 75mm Noise Control Batts TM One layer of Boral Plasterboard SoundStop conventionally fixed to Furring Channels

53 QuietZone Ceiling Systems QuietZone Installation 53 Quieter Ceilings The "Quieter" ceiling system consists of two sheets of 10mm Boral Plasterboard SoundStop fixed to underside of floor/ceiling joists with Furring Channel (Rondo P.N.129) and Boral Plasterboard Acoustic Ceiling Mount. Fix Furring Channel to ceiling joists at 450mm centres. For joists at 450mm centres, fix ceiling mount to every third joist. For joists at 600mm centres, fix ceiling mount to every second joist. Mechanically fasten first layer of Boral SoundStop to Furring Channel with screws across sheet width at 300mm max. centres. Second layer is fixed to first using combination stud adhesive and mechanical fasteners. Apply stud adhesive at 230mm max. centres across sheet width, 200mm from edges of sheets and screw points. Screw fasten plasterboard at sheet edges (10-16mm from edge) and along centreline of sheet to each Furring Channel. Floor/ceiling cavity is filled with Insulation Solutions 75mm Noise Control Batts. QuietZone performance R w 54 - Very hard to hear loud speech. IIC 68 - With floor covering of carpet and underlay, heavy walking heard as low thump. For ceiling 450mm centres, fix ceiling mount to every third joist For 600mm centres, fix ceiling mount to every second joist Floor joists Flooring 75mm Noise Control Batts TM 300mm min overlap First layer of Boral Plasterboard SoundStop screw fastened to Furring Channels Daubs of Stud Adhesive across width of sheet at Furring Channel locations Second layer of Boral Plasterboard SoundStop Screw along centreline of sheet

54 QuietZone Ceiling Systems 54 QuietZone Installation Quietest Ceilings The "Quietest" ceiling system consists of two sheets of 10mm Boral Plasterboard SoundStop fixed to underside of floor/ceiling joists with Furring Channel (Rondo P.N.129) and Boral Plasterboard Acoustic Ceiling Mount. Two additional layers of 10mm Boral Plasterboard SoundStop are fixed to underside of flooring with cleats, ensuring a snug fit between joists. Fix Furring Channel to ceiling joists at 450mm centres. For joists at 450mm centres, fix ceiling mount to every third joist. For joists at 600mm centres, fix ceiling mount to every second joist. Fasten two layers of 10mm Boral Plasterboard SoundStop to underside of flooring with cleats. Mechanically fasten first layer of Boral SoundStop to Furring Channel with screws across sheet width at 300mm max. centres. Second layer is fixed to first using combination stud adhesive and mechanical fasteners. Apply stud adhesive at 230mm max. centres across sheet width, 200mm from edges of sheets and screw points. Screw fasten plasterboard at sheet edges (10-16mm from edge) and along centreline of sheet to each Furring Channel. Floor/ceiling cavity is filled with Insulation Solutions 75mm Noise Control Batts. QuietZone performance R w 59 - Loud speech cannot be heard. IIC 74 - With floor covering of carpet and underlay, heavy walking heard as very low thump. For ceiling 450mm centres, fix ceiling mount to every third joist For 600mm centres, fix ceiling mount to every second joist 2 x 10mm layers of Boral Plasterboard SoundStop to underside of flooring. Hold in place with plasterboard Floor joists cleats nailed to side of floor joists Flooring 75mm Noise Control Batts TM 300mm min overlap First layer of Boral Plasterboard SoundStop screw fastened to Furring Channels Stud Adhesive daubs across width of sheet at Furring Channel locations Second layer of Boral Plasterboard SoundStop Screw along centreline of sheet

55 QuietZone Ceiling Systems 55

56 Guarantee Products manufactured and supplied by Boral Australian Gypsum Limited (BAGL) A.C.N , trading as Boral Plasterboard, are guaranteed to be of consistent quality and free from any defects. The information contained in this brochure is available on TecSYS - a comprehensive technical catalogue on CD-ROM. Boral Plasterboard products must be installed using the components and accessories specified and in accordance with the instructions detailed in Boral Plasterboard s technical literature. Our products are manufactured to suit the requirements of the building industry in Australia. Boral Plasterboard may limit its liability under this guarantee to, at its option, the replacement or payment of the cost of replacing OR supplying equivalent or payment of the cost of supplying equivalent OR the repair or payment of the cost of repairing products found to be defective. Important Note The technical information contained within this manual was correct at the time of printing. Building Systems and details are, however, subject to change. To ensure the information you are using is current, Boral Plasterboard recommends you review the latest building information available electronically on TecSYS (our technical catalogue on CD) or the Boral Plasterboard Website. Alternatively, contact your nearest Boral Plasterboard Sales Office or TecASSIST (see details below). Through TecASSIST Boral Plasterboard is demonstrating its commitment to providing excellent technical service and support to design, building and construction professionals Australia wide. A free-call architectural support line, TecASSIST is available to provide sound advice on all matters relating to drywall plasterboard construction. Combining years of professional experience with the latest design information and technology, the TecASSIST team has the skills to help you. Boral Plasterboard TecASSIST phone line is open to receive calls from 9.00am to 5.00pm Monday to Friday, Melbourne time (Victorian public holidays excepted). FREE-CALL hour fax: (03) techdesk@plasterboard.boral.com.au. Queensland 733 Nudgee Road Northgate 4013 Telephone (07) Fax (07) New South Wales 3 Thackeray Street Camellia 2142 Telephone (02) Fax (02) South Australia Bedford Street Gillman 5013 Telephone (08) Fax (08) Victoria 676 Lorimer Street Port Melbourne 3207 Telephone (03) Fax (03) Export Department 676 Lorimer Street Port Melbourne 3207 Telephone (03) Fax (03) Western Australia 12 Hoskins Road Landsdale 6065 Telephone (08) Fax (08) ACT 7 Barrier Street Fyshwick 2609 Telephone (02) Fax (02) Tasmania 93 Albert Road Moonah 7009 Telephone (03) Fax (03) Northern Territory Cnr Coonawarra Road & Mataram Street Winnellie 0820 Telephone (08) Fax (08) Boral Plasterboard Website: Boral Australian Gypsum limited 2001