CHAPMAN GRIFFIN LANIER SUSSENBACH ARCHITECTS, INC. ARCHITECT S ADDENDUM NO. 06

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1 CGLS A R C H I T E C T S CHAPMAN GRIFFIN LANIER SUSSENBACH ARCHITECTS, INC Cumberland Parkway Suite 350 Atlanta, Georgia (voice) (fax) ARCHITECT S ADDENDUM NO. 06 TO: ALL HOLDERS OF PROPOSAL DOCUMENTS PROJECT: WALTON HIGH SCHOOL REPLACEMENT SCHOOL COMPLETION STAGE 2, PHASE 2 - PERFORMING ARTS AND ATHLECTIC SPACES 1590 BILL MURDOCK ROAD MARIETTA, GEORGIA OWNER: COBB COUNTY SCHOOL DISTRICT 440 GLOVER STREET MARIETTA, GEORGIA, ARCHITECT: CHAPMAN GRIFFIN LANIER SUSSENBACH ARCHITECTS, INC CUMBERLAND PARKWAY SUITE 350 ATLANTA, GEORGIA DATE: JANUARY 31, 2018 The items listed on the attached pages take precedence over referenced portions of Contract Documents for the project and, in executing a contract, shall become a part thereof. Where any item called for in the Contract Documents is supplemented hereby, the original requirements shall remain in effect. All supplemental conditions shall be considered as added thereto. Where any original item is amended, voided, or superseded hereby, the provisions of such items not so specifically amended, voided, or superseded shall remain in effect. THIS ADDENDUM IS ISSUED TO PROVIDE THE STRUCTURAL SHEETS LISTED IN ADDENDUM #5 AS (CLARIFICATION/COORDINATION). ONE ADDITIONAL CHANGE IS LISTED UNDER PART 1. PART 1 - CHANGES TO THE DRAWINGS 1-1 Sheet A-4.31 CANOPY DETIALS: Sheet reissued in its entirety. A. Revise 2/A-4.31 to change the canopy depth as indicated. PART 2 - CHANGES TO THE SPECIFICATIONS PART 3 SUBSTITUTION REQUEST RESPONSES PART 4 QUESTIONS FROM CONTRACTORS

2 CGLS ARCHITECTS, INC. Page 2 PART 5 CHANGES TO ADDENDA 5-1 Sheet A-4.31 CANOPY DETIALS: Sheet reissued in its entirety. B. Revise 4/A-4.31 to change the canopy depth from 4-0 to Sheet A-6.22 WALL SECTIONS: Sheet reissued in its entirety. A. 3/A-6.22 provide soffit vent full perimeter of ceiling at loading dock. 5-3 Sheet S-2.11 LEVEL 200 FOUNDATION PLAN - PART 1: Sheet reissued in its entirety. A. Changed footing size at A.P/5 & A.J/5 to F Sheet S-2.12 LEVEL 200 FOUNDATION PLAN - PART 2: Sheet reissued in its entirety. A. Changed pier type at grid intersection A.O/38 to pier type P3. B. Changed footing size at G/45 to F9. C. Changed footing sizes at A.J/5, A.O/43.1, L/45, & N/45 to F10. D. Changed footing sizes at I/11.2, I/39.7, A.N/45 & A.G/43.1 to F7. E. Changed footing size at S/45 to F11. F. Added Grids 16.3 & 34.8 to clarify location of columns K/16.3 & K/34.8 (see S-2.22). 5-5 Sheet S-2.13 LEVEL 200 FOUNDATION PLAN - PART 3: Sheet reissued in its entirety. A. Changed pier type at grid intersection A.O/38 to pier type P3. B. Changed footing size at B.J/13.9 & B.J/39 to F10. C. Changed footing size at B.J/22 to F8 D. Changed columns at B.J/30 & B.J/33 from HSS12x8x5/8 to HSS8x8x3/ Sheet S-2.14 LEVEL 200 FOUNDATION PLAN - PART 4: Sheet reissued in its entirety. A. Changed footing sizes at B.J/46 & B.B/83 to F6. B. Changed footing sizes at A.N/45 to F Sheet S-2.15 LEVEL 200 FOUNDATION PLAN - PART 5: Sheet reissued in its entirety. A. Changed footing size at G/45 to F9. B. Changed footing sizes at A.O/43.1, L/45, & N/45 to F10. C. Changed footing sizes at A.N/45 & A.G/43.1 to F7. D. Changed footing size at S/45 to F Sheet S-2.21 LEVEL 300 FLOOR FRAMING PLAN - PART 1: Sheet reissued in its entirety. A. Added section cut 7/S-6.14 (sim) for edge of stair landing along grid A.J. 5-9 Sheet S-2.25 LEVEL 325 FLOOR FRAMING PLAN - PART 5: A. Added section cut 7/S-6.14 (sim) for edge of stair floor landing along grid A.N Sheet S-4.14 ROOF FRAMING PLAN - PART 4: Sheet reissued in its entirety. A. Updated tube beam along Grid B.K between Grids to HSS16x8x3/8 (LSV) & updated section at this tube beam from 1/S-7.28 to 6/S-7.28 to coordinate with Architectural.

3 CGLS ARCHITECTS, INC. Page Sheet S-4.15 ROOF FRAMING PLAN - PART 5: Sheet reissued in its entirety. A. Added HSS6x4x1/2 (LSH) stub cantilevers at lobby roof from columns at Grid A along 58.8 & 53 to end of joist top chord extension per 4/S Sheet S-6.13 FLOOR FRAMING SECTIONS & DETAILS: Sheet reissued in its entirety. A. 1/S-6.13 Modified roof deck edge bent plate thickness to ½. Clarified joists shall be designed for 7.6k point load from brick veneer B. 2/S-6.13 Modified roof deck edge bent plate thickness to ½. Clarified joists shall be designed for 7.2k point load from brick veneer Sheet S-6.14 FLOOR FRAMING SECTIONS & DETAILS: Sheet reissued in its entirety. A. 7/S-6.14 Deleted L3x3x5/16 slab edge edge of stair landing slab. Added L4x4x3/8 x continuous with ¾ diameter expansion bolts (embed 6 24 oc in 2 vertical slots connecting bottom of stair channel to CMU wall. B. 9/S-6.14 Removed CMU wall & T/CMU wall connection below floor beam from section. T/CMU wall stops (1) course above ceiling per Architectural Sheet S-6.16 FLOOR FRAMING SECTIONS & DETAILS: Sheet reissued in its entirety. A. 5/S-6.16 Updated slab edge location to 1-2 from grid A.E. & corresponding slab edge bent plate horizontal leg length to 13 ½ to coordinate with Architectural update. Modified beam web stiffener thickness to 5/16 each side. B. 7/S-6.16 Changed L8x8x1/2 continuous with ¼ stiffener 48 on center to 3/8 X 9 ½ continuous steel plate with 5/16 stiff 32 C. 8/S-6.16 Updated slab edge bent plate thickness to 3/8. Added ¼ beam web stiffener 48 oc. D. 9/S Changed L8x8x1/2 continuous with ¼ stiffener 48 on center to 3/8 X 9 ½ continuous steel plate with 5/16 stiff 32 on center Sheet S-6.17 FLOOR FRAMING SECTIONS & DETAILS: Sheet reissued in its entirety. A. 3/S-6.17 & 4/S Deleted 3/8 X7 X6 (LLH) x continuous veneer relief bent plate & weldable bars at slab edge Sheet S-7.13 ROOF FRAMING SECTIONS & DETAILS: Sheet reissued in its entirety. A. 2/S-7.13 Removed weld size for tube beam to embed plate connection to be coordinated by steel fabricator with tube beam radius Sheet S-7.15 ROOF FRAMING SECTIONS & DETAILS: Sheet reissued in its entirety. A. 3/S-7.15 Noted reactions for joist design Sheet S-7.16 ROOF FRAMING SECTIONS & DETAILS: Sheet reissued in its entirety. A. 3/S-7.16 Clarified spacing of expansion anchors in deck edge bent plate to be at 24 oc. Modified roof deck edge bent plate thickness to ½. Corrected veneer load on joist to 7.6k. B. 4/S-7.16 Noted reactions for joist design Sheet S-7.17 ROOF FRAMING SECTIONS & DETAILS: Sheet reissued in its entirety. A. 4/S-7.17 Noted reactions for joist design.

4 CGLS ARCHITECTS, INC. Page Sheet S-7.18 ROOF FRAMING SECTIONS & DETAILS: Sheet reissued in its entirety. A. 1/S-7.18 Noted reactions for joist design Sheet S-7.19 ROOF FRAMING SECTIONS & DETAILS: Sheet reissued in its entirety. A. 1/S-7.19 Noted for GC to provide steel shims as needed on top of steel truss for deck bearing to accommodate differential deflection between truss and adjacent joist. Added note for cross bridging not to be installed in end bay of Gym roof between steel joist & steel truss Sheet S-7.20 ROOF FRAMING SECTIONS & DETAILS: Sheet reissued in its entirety. A. 1/S Updated T/CMU wall bent plate connection size from bent plate 3/8 x 17 x 8 (LLV) to bent plate 3/8 X 17 X 5 (LLV). 2. Updated F/CFSF stud relative to centerline of steel beam. 3. Added CFSF clip connection from high deck edge bent plate to parapet CFSF. 4. Added plf load for steel joist to be designed for. 5. Added bent plate 3/8 x 10 x 10 x on center with ¾ diameter expansion 32 on center at bottom of steel joist connection to CMU wall. 6. Added 12 depressed web block with (2) - #5 continuous at new bottom of steel joist connection to CMU wall Sheet S-7.21 ROOF FRAMING SECTIONS & DETAILS: Sheet reissued in its entirety. A. 3/S Modified roof deck edge bent plate to 11 x6 x½ (LLH) Sheet S-7.22 ROOF FRAMING SECTIONS & DETAILS: Sheet reissued in its entirety. A. 1/S Modified roof deck edge bent plate to 11 x6 x½ (LLH). B. 2/S Updated T/CMU wall bent plate connection size from bent plate 3/8 x 17 x 8 (LLV) to bent plate 3/8 X 17 X 5 (LLV). 2. Updated F/CFSF stud relative to centerline of steel beam. 3. Added CFSF clip connection from high deck edge bent plate to parapet CFSF. 4. Added plf load for steel joist to be designed for. 5. Added bent plate 3/8 x 10 x 10 x on center with ¾ diameter expansion 32 on center at bottom of steel joist connection to CMU wall. 6. Added 12 depressed web block with (2) - #5 continuous at new bottom of steel joist connection to CMU wall Sheet S-7.27 ROOF FRAMING SECTIONS & DETAILS: Sheet reissued in its entirety. A. 1/S Updated Tube beam width from 12 wide to 8 wide. 2. Clarified dimension from centerline of tube to grid B.J. 3. Added 4 CMU grouted solid at interior face of tube beam Sheet S-7.28 ROOF FRAMING SECTIONS & DETAILS: Sheet reissued in its entirety. A. 4/S Modified roof deck edge bent plate thickness to ½.

5 CGLS ARCHITECTS, INC. Page 5 B. Added section 6/S-7.28, which revises 1/S-7.28 at Grid B.K between Grids (sheet S- 4.14) for tube beam update from 12 wide to 8 wide with 4 CMU grouted interior face of tube beam Sheet S-7.29 ROOF FRAMING SECTIONS & DETAILS: Sheet reissued in its entirety. A. 3/S-7.29 Noted reactions for joist design. Updated HSS on top of joist to HSS4x4x5/16. END OF ADDENDUM NO. SIX

Bidders and Others to Whom Bidding Documents have been issued by the Architect and/or CM.

ADDENDUM NO. March 3, 202 Re: MCC Student Center Addition, Manchester, NH To: Bidders and Others to Whom Bidding Documents have been issued by the Architect and/or CM. All items in this Addendum shall