Steel Reinforced Joining Thank you for choosing Andersen. Please leave this guide with building owner.

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1 Steel Reinforced Joining (Horizontal/Vertical) for Andersen 400 Series Woodwright & Tilt-Wash Double-Hung, Picture, and Transom Windows and 400 Series Double-Hung Half Circle and Flexiframe Specialty Windows Thank you for choosing Andersen. Instructions are for typical, new wood-framed wall construction with weather protection in place. Instructions may not be right for all installations due to building design, construction materials or methods used and/or building or site conditions. Consult a contractor or architect for recommendations. Flanges on the unit alone will not properly flash and seal the window. Follow these instructions carefully. For questions call For more information and/or guides visit andersenwindows.com. Please leave this guide with building owner. Read guide from beginning to end before starting installation. Read all warnings and cautions during unit installation. Check with your local building code official to identify and confirm compliance with local building code requirements. Windows and doors can be heavy. Use safe lifting techniques and a reasonable number of people with enough strength to lift, carry, and install window and door products. Heavier windows and doors will require mechanical assistance. Failure to do so could result in injury, product or property damage. Use caution when working at elevated heights and around window and door openings. Follow the manufacturers instructions for ladders and scaffolding. Failure to do so could result in injury or death. Follow manufacturers instructions for hand and power tools. Always wear safety glasses. Failure to do so could result in injury, product or property damage. Unless specifically ordered, Andersen windows are not equipped with safety glass, and if broken, could fragment causing injury. Many laws and building codes require safety glass in locations adjacent to or near doors. Andersen windows are available with safety glass that could reduce the likelihood of injury when broken. Information on safety glass is available from your local Andersen dealer. Andersen head flashing and installation flanges DO NOT take the place of window and door flashing tape or liquid flashing. Window or door must be properly flashed and sealed with a material compatible sealant for protection against water and air infiltration. Failure to do so could result in product or property damage. DO NOT apply any type of film to insulating glass. Doing so could cause thermal stress conditions and result in glass damage. Shading devices (e.g. insulated coverings, shutters, etc.) could also cause thermal stress and condensation causing deterioration of windows or doors. Andersen and all other marks where denoted are trademarks of Andersen Corporation Andersen Corporation. All rights reserved. BD-00 Revised 01/19/18

2 Parts Included (1) Installation Guide (2) V-Notch Gusset Plate (two per join) (16) #8 x 5/8" Screw (8) #8 x 7/8" Screw (18) #10 x 2-1/4" Screw (pack #RMWHG or RMTTG) (18) #10 x 3" Screw (pack #RMWHG or RMTTG) (18) #10 x 1-5/8" Screw (pack # (10) 1/16" Vertical Spacer (4) Jamb Liner Plug (2) #10 x 2-1/2" Color Matched Screw Inside Trim Natural, Horizontal, 1-11/16" Natural, Vertical, 1-11/16" Natural, Vertical, 1-11/16" White, Vertical, 1-11/16" Horizontal Inside Trim* 3-11/16" End Bracket Kit* Additional Parts Required Steel Reinforced Joining Strip* End Bracket Kit* (includes screws) Exterior Trim Strip (Wide, Narrow, or Horizontal)* Inside Wood Casing* Wood Spacers* Drip Cap* (full width) *These parts are required for a complete reinforced joining installation. They are not included in the steel gusset plate kit and must be purchased separately. Component Identification V-Notch Gusset Plate Steel Reinforced Joining Guide 1/16" Vertical Spacer Tools & Supplies Safety Glasses Tape Measure Pencil Saw (cutting steel) Phillips Screwdriver Flat Blade Screwdriver 5/16", 1/8", and 3/32" Drill Bits Drill/Driver Carpenters Square Caulk Gun Sealant (color matching) Sealant Primer Construction Adhesive 1" Nails or Staples Marker Rust Inhibitive Primer Shims Jamb Liner Plug Steel Reinforced Joining Strip* (8' 0-1/4", 9' 6" and 12' 6" lengths) Inside Wood Casing* 2-3/8", 2-5/8", 2-15/16" Head Jamb Filler Piece Narrow Exterior Trim Strip* (96" and 150" lengths) (For Flexiframe & Architectural Windows Only) Wide Exterior Trim Strip* (96" and 150" lengths) Horizontal Exterior Trim Strip* (48", 84" and 150" lengths) #8 x 5/8" Screw #8 x 7/8" Screw #10 x 1-5/8" Screw #10 x 2-1/4" Screw #10 x 2-1/2" Screw 2

3 Steel Reinforced Joining Guide Metal fasteners and components could corrode when exposed to preservative-treated or fire-retardant treated lumber. Use approved fasteners and components to fasten window or door. Failure to do so could cause a failure resulting in injury, product or property damage. The Andersen steel reinforced joining products are designed to give added windload performance to joined combinations of Andersen windows and patio doors. They do not take the place of structural components in a building. Failure to provide adequate structural support could lead to window and door performance problems, product failure or installation failure. Window units joined over patio doors must span width of door and window side jambs must be aligned over door side jambs. This may result in water leakage and lack of structural support. Units may be completed horizontally and then lifted into the rough opening or joined in sections and assembled in the rough opening. The method used will depend on the combination size and weight, and on the installer's individual preferences. VERIFY YOUR SELECTION Andersen offers several choices in joining materials. Whether or not to use reinforcement in a window combination is dependent on the combination size and the design load requirement. The combination size is based on the geometry and area of the combination in question. Design load is based on several factors: wind speed, location, orientation, elevation, and others. Consult local building codes for determining the design load requirement for your installation. Determination of the design load is the sole responsibility of the architect, building owner, contractor and/or consumer. Proper joining material selection for Andersen windows and patio doors is essential if the benefits of experienced window design and engineering, quality materials and skilled workmanship are to be fully attained. Since every installation is different, these joining material selection, assembly and installation instructions are guidelines only. Andersen strongly recommends consultation with the local Andersen supplier or an experienced contractor, architect, or structural engineer prior to the installation of any Andersen product. 3

4 1. Prepare Units Position units on a workbench or floor with the unit's exterior facing up. Remove all packaging materials. Identify locations for Steel Reinforced Mullion/Transom joins. All joins not requiring Steel Reinforced Joining material should use standard non-reinforced joining materials. Non-reinforced joins should be assembled first. For Half Circle Units, cut and remove Installation Flanges on jambs being assembled with the Steel Reinforced Joining Strip. (figure 1). For Flexiframe or Double-Hung Units, remove Installation Flanges on jambs to be assembled with the Steel Reinforced Joining Strip (figure 2a). Cut corners of attached Installation Flange at a 45 angle (figure 2b). Steel Reinforced Joining Guide Utility Knife figure 1 Exterior Side Up Half Circle Units Exterior Side Up Installation Flanges should overlap one another at the ends of the horizontal/vertical joins. DO NOT apply non-reinforced mullion/transom Gusset Plates on jambs adjacent to the steel mullion/transom joint for vertically joined combinations. figure 2a figure 2b Flip units over so the exterior side is down. 2. Cut and Install Steel Reinforced Joining Strip Cut Steel Reinforced Joining Strip 1/4" shorter than the length of the jamb for the unit, or combination of units, to be joined with the Steel Reinforced Joining Strip. Cutting can be accomplished using any standard metal cutting method (hacksaw, reciprocating saw, band saw, circular saw with metal cutting blade). Treat cut ends and drilled holes on Steel Reinforced Joining Strip with a quality rust inhibiting primer. Failure to do so may cause corrosion and potential structural failure resulting in injury, product and/or property damage. Tape Measure D Hole Flexiframe or Double-Hung Units Outer Hole Center Hole Steel Reinforced Joining Strip Outer Hole Scribe Marks Exterior Side Up Exterior Side Up Oval Hole 4

5 3. Select Proper Screw Pack Envelope Select the proper screw pack envelope based on the units and the direction of the reinforced joint in your combination. Steel Reinforced Joining Guide UNIT DIRECTION OF JOIN SCREW SIZE SCREW PACK Double-Hung to Double-Hung Vertical 1-5/8" RMWHE (white) or RMTTE (Terratone /sandtone) Flexiframe over Double-Hung Horizontal 1-5/8" RMWHE (white) or RMTTE (Terratone /sandtone) Double-Hung to Flexiframe Vertical 2-1/4" RMWHG (white) or RMTTG (Terratone /sandtone) Half Circle over Double-Hung Horizontal 1-5/8" RMWHE (white) or RMTTE (Terratone /sandtone) Transom over Double-Hung Horizontal 1-5/8" RMWHE (white) or RMTTE (Terratone /sandtone) 4. Choose Reference Detail Find your specific unit type and direction of join. Refer to listed page for joining detail and appropriate instructions for your combination. UNIT TYPE DIRECTION OF JOIN PAGE # Double-Hung Half Circle Horizontal 6 Woodwright Transom or Tilt-Wash Transom Horizontal 6,7 Tilt-Wash Double-Hung or Woodwright Double-Hung Vertical 8,9 Tilt-Wash Picture or Woodwright Picture Vertical 8,9, Woodwright Transom Vertical 9 Tilt-Wash Transom Vertical 10 Flexiframe Horizontal 11 Flexiframe Vertical 12 Tilt-Wash Picture & Woodwright Picture Horizontal 6,7 Tilt-Wash Double-Hung or Woodwright Double-Hung Horizontal 6,7 5

6 5. Assembly Double-Hung Half Circle over Woodwright or Tilt-Wash Double-Hung, Picture or Transom - Horizontal Joins The following steps require the 1-5/8" screw pack (Pack #RMWHE or #RMTTE). Place all units exterior side up. Rest the Steel Reinforced Joining Strip's edge on the surface of the bench or floor with the scribe marks down and position against the Double-Hung unit Head Jamb with scribed edge of the steel flush to inside surface of the unit. Attach joining strip with a minimum of two #8 x 7/8" screws per unit through the D shaped holes. If joining above Tilt-Wash Picture Window, remove Side and Head Jamb Liners. If joining above Woodwright Picture or Transom window, remove interior wood filler piece. Using the Steel Reinforced Joining Strip as a template, predrill the screw holes using a 1/8" drill bit through slotted holes (approximately 2-1/8" from interior edge). Drill holes completely through the Head Jamb at the center. If joining above Picture Window or Transom, predrill at exterior edge of the center hole. Apply a 3/16" bead of sealant along both inside corners of the Wide Exterior Trim Strip. Attach the short legs of the Wide Exterior Trim Strip into the flange kerf of the joined side outer frame member. Remove excess sealant from the joined outer frame members. Hold exterior trim strip tight to head outer frame member, and position appropriate Head Jamb Filler Piece. Wide Exterior Trim Strip 3/16" Diameter Sealant Bead Center the Double-Hung Half Circle unit over unit to be joined and clamp together securely. Fasten with #10 x 1-5/8" screws through the predrilled holes through the Head Jamb. Continue to Step 6. Sealant must make contact with units Sealant and Wide Exterior Trim Strip Sealant must make contact with unit Sealant and Wide Exterior Trim Strip #10 x 1-5/8" Screw Locations (screw pack RMWHG or RMTTG) 3/16" Head Jamb Filler Piece (by others) 3/16" Head Jamb Filler Piece (by others) Placement of screw requires temporary removal of interior wood #10 x 1-5/8" filler piece Screw Locations (screw pack RMWHG or RMTTG) Half Circle over Woodwright Picture or Transom - Horizontal Join Sealant must make contact with units Sealant and Wide Exterior Trim Strip #10 x 1-5/8" Screw Locations (screw pack RMWHG or RMTTG) 3/16" Head Jamb Filler Piece (by others) Double-Hung Half Circle over Woodwright Double-Hung - Horizontal Join Sealant must make contact with unit Steel Reinforced Joining Guide Double-Hung Half Circle over Tilt-Wash Double-Hung, or Picture Window - Horizontal Join 3/8" Head Jamb Filler Piece Sealant and Wide Exterior Trim Strip Placement of screw requires temporary removal of interior wood filler piece #10 x 1-5/8" Screw Locations (screw pack RMWHG or RMTTG) Double-Hung Half Circle over Tilt-Wash Transom - Horizontal Join 6

7 Steel Reinforced Joining Guide Assembly (Continued) Woodwright Transom over Woodwright Double-Hung or Picture and Tilt-Wash Transom over Tilt-Wash Double-Hung or Picture - Horizontal Joins The following steps require the 2-1/4" screw pack (Pack #RMWHG or #RMTTG). Place all units exterior side up. Rest the Steel Reinforced Joining Strip's edge on the surface of the bench or floor with the scribe marks down and position against the lower unit head jamb with scribed edge of the steel flush to inside surface of the unit. Attach joining strip through the D shaped holes with a minimum of two #8 x 7/8" screws per unit. If joining Tilt-Wash Double-Hung Picture Window, remove Side and Head Jambs Liners. If joining above Woodwright Picture Window or Woodwright Transom, remove Interior Wood Filler Piece. Using the Steel Reinforced Joining Strip as a template, predrill the screw holes using a 1/8" drill bit. Drill holes completely through the Head Jamb at the center and closest to the scribe marks. Center the Transom unit over unit to be joined and clamp together securely. Fasten with #10 x 1-5/8" through the predrilled holes. Continue to Step 6. Sealant, and Horizontal Exterior Trim Strip Tilt-Wash Transom over Tilt-Wash Double-Hung - Horizontal Join Sealant, and Horizontal Exterior Trim Strip # 10 x 1-5/8" Screw Locations (screw pack #10 x 1-5/8" Screw Locations (screw pack Woodwright Transom over Woodwright Double-Hung - Horizontal Join #10 x 1-5/8" Screw Locations (screw pack #10 x 1-5/8" Screw Locations (screw pack Sealant, and Horizontal Exterior Trim Strip Sealant, and Horizontal Exterior Trim Strip Placement of screw requires temporary removal of filler Placement of screw requires temporary removal of head jamb liner Woodwright Transom over Woodwright Picture - Horizontal Join Tilt-Wash Transom over Tilt-Wash Double-Hung Picture - Horizontal Join 7

8 Steel Reinforced Joining Guide Assembly (Continued) Woodwright Double-Hung to Woodwright Double-Hung, Picture, Transom Windows OR Tilt-Wash Double-Hung to Tilt-Wash Double-Hung, Picture, Transom Windows - Vertical Joins The following steps require the 1-5/8" screw pack (Pack #RMWHE or #RMTTE). Before joining two Tilt-Wash Double-Hung units side by side, remove cardboard sash retainer, banding tape, and both sash from one unit. (use screw pack Balancer Shoes are under high tension. Use a flat blade screwdriver with a long handle so both hands can be used to release balancer tension. Suddenly releasing Balancer Shoe may cause personal injury or damage window unit. Sealant, and Wide Exterior Strip Tilt-Wash Double-Hung to Tilt-Wash Double-Hung - Vertical Join Release tension on Balancers. Using a flat blade screwdriver turn Balancer Cam 90. Holding screwdriver firmly in the Balancer Cam carefully let shoe rise until tension is released. Upper Sash Balancer Shoe Lower Sash Balancer Shoe (use screw pack 5 Remove Side Jamb Liner from the joining side of the unit which the sash have been removed. Place all units exterior side up. Rest the Steel Reinforced Joining Strip's edge on the surface of the bench or floor with scribe marks down. Position against the Tilt-Wash or Picture Window side jamb with scribed edge of steel flush to inside surface of the unit. Attach joining strip using a minimum of two #8 x 7/8" screws per unit through D shaped holes. For Tilt-Wash Picture Windows, remove Side and Head Jamb Liners. For Woodwright Picture or Transom windows, remove Interior Wood Filler Piece. Sealant, and Wide Exterior Strip Tilt-Wash Double-Hung to Tilt-Wash Double-Hung Picture - Vertical Join #10 x 1-5/8" Screw Locations (screw pack RMWHG or RMTTG) Sealant, and Wide Exterior Strip Woodwright Double-Hung to Woodwright Double-Hung - Vertical Join 8

9 Steel Reinforced Joining Guide Using Steel Reinforced Joining Strip as a template, predrill screw holes using a 1/8" drill bit. Drill holes completely through Side Jambs at the center and closest to the scribe marks. For Tilt-Wash Picture Windows, predrill at exterior edge of the center holes. Apply a 3/16" bead of sealant along both inside corners of the Wide Exterior Trim Strip. Attach short legs of Wide Exterior Trim Strip into the flange kerf of the joined side outer frame member. Remove excess sealant from the joined outer frame members. Wide Exterior Trim Strip Align units flush at ends and clamp together securely. Fasten using 1-5/8" screws inserted into predrilled holes through Side Jambs. Perform this step for Tilt-Wash Double Hung Windows with Performance Grade Upgrade (PG +50/-55) only, remove both screws from Outer Frame Member Bracket on one unit and reverse screw location so the 1-1/4" screw is in the opposite hole. Replace the 3" screw with a 1-1/4" Color Matched Screw. Remove 3" screw from adjacent unit Outer Frame Member Bracket. Replace with 1-1/4" Color Matched Screw. Install 1-1/4" screws completely. Continue to Step 6. 3/16" Diameter Sealant Bead (use screw pack Sealant, and Wide Exterior Strip Woodwright Double-Hung to Woodwright Picture - Vertical Join (use screw pack Sealant, and Wide Exterior Strip Woodwright Picture to Woodwright Picture or Woodwright Transom to Woodwright Transom - Vertical Join (use screw pack #10 x 1-1/4" Color Matched Screw Outer Frame Member Bracket Sealant, and Wide Exterior Strip Tilt-Wash Double-Hung PG Upgrade to Tilt-Wash Double-Hung PG Upgrade - Vertical Join 9

10 Steel Reinforced Joining Guide Assembly (Continued) Tilt-Wash Transom to Tilt-Wash Transom - Vertical Join The following steps require the 1-5/8" screw pack (Pack #RMWHE or #RMTTE). Placement of screw requires temporary removal of stop # 10 x 1-5/8" Screw Locations (screw pack Place all units exterior side up. Rest the Steel Reinforced Joining Strip's edge on the surface of the bench or floor with the scribe marks down and position against the Tilt-Wash Transom Side Jamb with scribed edge of the steel 3/16" from the inside surface of the unit. Attach joining strip with a minimum of two #8 x 7/8" screws per unit through the D shaped holes. Using the Steel Reinforced Joining Strip as a template, predrill the screw holes using a 1/8" drill bit. Apply a 3/16" bead of sealant along both inside corners of the Wide Exterior Trim Piece. Attach the short legs of the Wide Exterior Trim Piece into the flange kerf of the joined side outer frame member. Remove excess sealant from the joined outer frame members. Securely fasten with #10 x 1-5/8" screws through the jamb holes and into the Side Jambs. Continue to Step 6. Wide Exterior Trim Strip 3/16" Diameter Sealant Bead Sealant, and Wide Exterior Trim Strip Tilt-Wash Transom to Tilt-Wash Transom - Vertical Join 10

11 Assembly (Continued) Flexiframe over Woodwright or Tilt-Wash Double-Hung, Picture, or Transom - Horizontal Joins Steel Reinforced Joining Guide The following steps require the 2-1/4" screw pack (Pack #RMWHG or #RMTTG). Place all units exterior side up. Rest the Steel Reinforced Joining Strip's edge on the surface of the bench or floor with the scribe marks down and position against the Double-Hung Head Jamb with scribed edge of the steel flush to inside surface of the unit. Attach joining strip through the D shaped holes with a minimum of two #8 x 7/8" screws per unit. If joining Tilt-Wash Picture Window, remove Side and Head Jamb Liners. If joining Woodwright Picture or Transom window, remove interior wood filler piece. Using the Steel Reinforced Joining Strip as a template, predrill the screw holes using a 1/8" drill bit. If joining Transom and Picture windows, pre-drill holes at the center only. Predrill all center holes at exterior edge of the hole and align drill at a 10 angle down from horizontal. Drill all holes completely through the head jamb and liner. Center units and clamp securely together. Fasten with #10 x 2-1/4" screws inserted into the predrilled holes through the Side Jambs. Continue to Step 6. Sealant and Narrow Exterior Trim Strip (screw pack 10 Flexiframe over Tilt-Wash Double-Hung - Horizontal Join (screw pack 10 Flexiframe over Tilt-Wash Picture - Horizontal Join (screw pack Extension Jamb Inside Wood Casing Extension Jamb Inside Wood Casing Placement of screw requires temporary removal of head jamb liner Extension Jamb Inside Wood Casing 10 Placement of screw requires temporary removal of interior wood filler piece. Flexiframe over Tilt-Wash Transom - Horizontal Join (screw pack Extension Jamb Extension Jamb Inside Wood Casing 10 Flexiframe over Woodwright Double-Hung Window - Horizontal Join 10 (screw pack Placement of screw requires temporary removal of interior wood filler piece. Flexiframe over Woodwright Transom or Picture - Horizontal Join 11

12 Steel Reinforced Joining Guide Assembly (Continued) The following steps require the 2-1/4" screw pack (Pack #RMWHG or #RMTTG) and Narrow Exterior Trim Strip. Place all units exterior side up. Rest the Steel Reinforced Joining Strip's edge on the surface of the bench or floor with the scribe marks down and position against the Double-Hung Side Jamb with scribed edge of the steel flush to inside surface of the unit. Attach joining strip through the D shaped holes with a minimum of two #8 x 7/8" screws per unit. If joining Tilt-Wash Double-Hung, remove cardboard sash retainer, sash, and side jamb liner from the side to be joined. If joining Tilt-Wash Picture Window, remove Head Jamb Liner and Side Jamb Liner from side to be joined. Using the Steel Reinforced Joining Strip as a template, predrill the screw holes using a 1/8" drill bit. If joining Transom or Picture Windows, drill holes at the center only. Predrill all center holes at exterior edge of the hole and align drill at a 5 angle down from horizontal. Drill all holes completely through the side jamb and Liner. Apply a 3/16" bead of sealant along both inside corners of the Narrow Exterior Trim Piece. Attach the short legs of the Narrow Exterior Trim Piece into the flange kerf of the joined side outer frame member. Remove excess sealant from the joined outer frame members. Narrow Exterior Trim Strip Align the units flush at ends and clamp securely together. Fasten the #10 x 2-1/4" screws into the predrilled holes through the side jambs. Continue to Step 6. Flexiframe to Woodwright or Tilt-Wash Double-Hung, Picture or Transom - Vertical Joins Sealant primer, 3/16" diameter sealant bead #10 x 2-1/4" screws (screw pack RMWHG or RMTTG) 2" Inside Wood Casing (modified) 2" Inside Wood Casing (modified) 5 Sealant and Narrow Exterior Trim Strip Flexiframe to Tilt-Wash Double-Hung - Vertical Join #10 x 2-1/4" screws (screw pack RMWHG or RMTTG) 2" Inside Wood Casing (modified) 5 Sealant and Narrow Exterior Trim Strip Flexiframe to Woodwright Double-Hung - Vertical Join #10 x 2-1/4" screw (screw pack RMWHG or RMTTG) 5 Sealant must make contact with units. Sealant and Narrow Exterior Trim Strip Flexiframe to Tilt-Wash Picture - Vertical Join 12

13 6. Apply Sealant Steel Reinforced Joining Guide Top Unit Overlap Installation Flanges and apply sealant between and up to base of flange, as shown. Top unit Installation Flanges must overlap bottom unit Installation Flanges to the exterior. Apply flashing tape or equivalent to areas where Installation Flanges overlap. Prime joined ends using sealant primer and air dry. Apply sealant to joined ends filling voids completely. Horizontal Overlap Vertical Overlap Sealant Exterior Sealant Bottom Unit Overlap Side Installation Flanges Sealed Overlapping Installation Flanges Overlap Head Installation Flanges Flashing Tape Sealant (Shown with installation flange removed for calarity). Exterior Side Up 7. Attach V-Notch Gusset Plates For all steel reinforced joins, two V-Notch Gusset Plates are required. Vertical join requires one at head and one at sill end of each join. Horizontal join requires one at the left jamb and one at the right jamb at the join. Screw Location - Sill Fasten four screws into side jamb holes and four screws into lower holes on sill of unit. Fasten four screws into middle holes and four screws into corner holes on side jamb of unit. Screw Location - Side Jamb Follow diagrams at right to determine which holes on Gusset Plate to fasten screws into. Fastening screws into incorrect holes may cause product damage. Fasten four screws into side jamb holes and four screws in center holes on head of Tilt-Wash unit. Screw Location - Head Jamb Tilt-Wash Units 13

14 7. Attach V-Notch Gusset Plates (Continued) Place V-Notch Gusset Plate behind Installation Flange, centering it with the Steel Reinforced Joining Strip. Predrill using a 3/32" drill bit and attach V-Notch Gusset Plates to jambs or sill using eight #8 x 5/8" screws in each V-Notch Gusset Plate. Installation Flange Steel Reinforced Joining Guide Steel Reinforced Joining Strip Drill/Driver #8 x 5/8" Screw V-Notch Gusset Plate Interior Side Up Drill holes through Installation Flange as shown. Draw circles around drilled holes on outside surface of Installation Flange using a permanent marker. Print the words, APPLY (6) #8 x 2-1/2" SCREWS THROUGH GUSSET PLATE as a reminder for the installer. Installation Flange Drill/Driver #8 x 2-1/2" Screw V-Notch Gusset Plate Interior Side Up 8. Apply Sealant Apply sealant to completely fill void between joined units. Proceed to drip cap application step in the Unit Installation Guide for drip cap, flashing, and insulation steps. Ends of Exterior Trim Strip Sealant Caulk Gun Exterior Side Up 14

15 9. Install Combination in Rough Opening Steel Reinforced Joining Guide Windows and doors can be heavy. Use safe lifting techniques and a reasonable number of people with enough strength to lift, carry and install window and door products to avoid injury and/or product damage. For units being joined but not installed at this time, apply a note (using a permanent marker) to the installer, indicating the installation fasteners must be secured through V-Notch Gusset Plates. Installation Flange For complete unit installation, refer to basic unit Installation Guide included with basic window unit. Perform this step for Tilt-Wash Double-Hung Windows with Performance Grade Upgrade (PG +50/-55) only, apply Installation Jamb Clips as specified in installation guide. Apply one additional Installation Jamb Clip at each end of head jamb Gusset Plate(s). Position combination in rough opening. Use shims as needed around perimeter units to square and level the combination. Attach combination by fastening through Installation Flanges. Attach each V-Notch Gusset Plate to framing material using (6) 10d nails or #8 x 2-1/2" or larger screws through Installation Flange and Gusset Plate as shown. Shim each V-Notch Gusset Plate, as needed to maintain a proper fit in the rough opening. Seal all areas around V-Notch Gusset Plate and Installation Flanges using sealant. For vertical joins only, perform this step for Tilt-Wash Double- Hung Windows with Performance Grade Upgrade (PG +50/-55) only, remove second Head Jamb Liner Screw from joined side and replace with a 2-1/2" screw. Joined units are now ready for installation. Follow installation guide packaged with unit for window and drip cap installation. V-Notch Gusset Plate Drill/ Driver Sealant V-Notch Gusset Plate 15

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