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HomeMy WebLinkAbout09 29 00 - Gypsum BoardCORNELL UNIVERSITY SECTION 09 29 00 Ithaca, New York GYPSUM BOARD CLARA DICKSON HALL GYPSUM BOARD 09 29 00-1 WASTE & STORM LINE REPLACEMENT DECEMBER 31, 2014 SECTION 09 29 00 - GYPSUM BOARD PART 1 - GENERAL 1.1 RELATED DOCUMENTS A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 01 Specification Sections, apply to this Section. 1.2 SUMMARY A. Section Includes: 1. Interior gypsum board. 2. Tile backing panels. B. Related Requirements: 1. Section 093000 "Tile" for cementitious backer units installed as substrates for ceramic tile. 1.3 ACTION SUBMITTALS A. Product Data: For each type of product. 1.4 QUALITY ASSURANCE A. Mockups: Before beginning gypsum board installation, install mockups of at least 100 sq. ft in surface area to demonstrate aesthetic effects and set quality standards for materials and execution. 1. Install mockups for the following: a. Each level of gypsum board finish indicated for use in exposed locations. b. Each texture finish indicated. 2. Apply or install final decoration indicated, including painting and wallcoverings, on exposed surfaces for review of mockups. 3. Simulate finished lighting conditions for review of mockups. 4. Subject to compliance with requirements, approved mockups may become part of the completed Work if undisturbed at time of Substantial Completion. CORNELL UNIVERSITY SECTION 09 29 00 Ithaca, New York GYPSUM BOARD CLARA DICKSON HALL GYPSUM BOARD 09 29 00-2 WASTE & STORM LINE REPLACEMENT DECEMBER 31, 2014 1.5 DELIVERY, STORAGE AND HANDLING A. Store materials inside under cover and keep them dry and protected against weather, condensation, direct sunlight, construction traffic, and other potential causes of damage. Stack panels flat and supported on risers on a flat platform to prevent sagging. 1.6 FIELD CONDITIONS A. Environmental Limitations: Comply with ASTM C 840 requirements or gypsum board manufacturer's written recommendations, whichever are more stringent. B. Do not install panels that are wet, those that are moisture damaged, and those that are mold damaged. 1. Indications that panels are wet or moisture damaged include, but are not limited to, discoloration, sagging, or irregular shape. 2. Indications that panels are mold damaged include, but are not limited to, fuzzy or splotchy surface contamination and discoloration. PART 2 - PRODUCTS 2.1 PERFORMANCE REQUIREMENTS A. Moisture- and Mold-Resistant Assemblies: Provide and install moisture- and mold-resistant glass-mat gypsum wallboard products with moisture-resistant surfaces complying with ASTM C 1658 and ASTM C 1177 where indicated on Drawings and in all locations which might be subject to moisture exposure during construction.Fire-Resistance-Rated Assemblies: For fire- resistance-rated assemblies, provide materials and construction identical to those tested in assembly indicated according to ASTM E 119 by an independent testing agency. 2.2 INTERIOR GYPSUM BOARD A. Basis-of-Design Product: The design for each type of gypsum board and related products is based on Georgia-Pacific Gypsum products named. Subject to compliance with requirements, provide the named product or a comparable product by one of the following: 1. American Gypsum. 2. CertainTeed Corp. 3. Lafarge North America Inc. 4. National Gypsum Company. 5. PABCO Gypsum. 6. Temple-Inland. 7. USG Corporation. B. Gypsum Board, Type X: ASTM C 1396/C 1396M. CORNELL UNIVERSITY SECTION 09 29 00 Ithaca, New York GYPSUM BOARD CLARA DICKSON HALL GYPSUM BOARD 09 29 00-3 WASTE & STORM LINE REPLACEMENT DECEMBER 31, 2014 1. Basis-of-Design Product: Georgia-Pacific Gypsum; ToughRock Fireguard Gypsum Board 2. Thickness: 5/8 inch. 3. Long Edges: Tapered. C. Flexible Gypsum Board: ASTM C 1396/C 1396M. Manufactured to bend to fit radii and to be more flexible than standard regular-type gypsum board of same thickness. 1. Basis-of-Design Product: Georgia-Pacific Gypsum; ToughRock FlexRoc Gypsum Board". 2. Thickness: 1/4 inch 3. Long Edges: Tapered. D. Gypsum Ceiling Board: ASTM C 1396/C 1396M. 1. Basis-of-Design Product: Georgia-Pacific Gypsum; ToughRock CD Ceiling Board 2. Thickness: 1/2 inch 3. Long Edges: Tapered. E. Moisture- and Mold-Resistant Gypsum Board: ASTM C 1396/C 1396M. With moisture- and mold-resistant core and paper surfaces. 1. Basis-of-Design Product: Georgia-Pacific-P Gypsum; ToughRock Mold-Guard Gypsum Panel 2. Core: 5/8 inch, Type X 3. Long Edges: Tapered. 4. Mold Resistance: ASTM D 3273, score of 10 as rated according to ASTM D 3274. 2.3 TRIM ACCESSORIES A. Interior Trim: ASTM C 1047. 1. Material: Galvanized or aluminum-coated steel sheet or rolled zinc 2. Shapes: a. Cornerbead. b. Bullnose bead. c. LC-Bead: J-shaped; exposed long flange receives joint compound. d. L-Bead: L-shaped; exposed long flange receives joint compound. e. U-Bead: J-shaped; exposed short flange does not receive joint compound. f. Expansion (control) joint. g. Curved-Edge Cornerbead: With notched or flexible flanges. 2.4 AUXILIARY MATERIALS A. General: Provide auxiliary materials that comply with referenced installation standards and manufacturer's written recommendations. CORNELL UNIVERSITY SECTION 09 29 00 Ithaca, New York GYPSUM BOARD CLARA DICKSON HALL GYPSUM BOARD 09 29 00-4 WASTE & STORM LINE REPLACEMENT DECEMBER 31, 2014 B. Laminating Adhesive: Adhesive or joint compound recommended for directly adhering gypsum panels to continuous substrate. 1. Laminating adhesive shall have a VOC content of 50 g/L or less when calculated according to 40 CFR 59, Subpart D (EPA Method 24). C. Steel Drill Screws: ASTM C 1002, unless otherwise indicated. D. Sound Attenuation Blankets: ASTM C 665, Type I (blankets without membrane facing) produced by combining thermosetting resins with mineral fibers manufactured from glass, slag wool, or rock wool. 1. Fire-Resistance-Rated Assemblies: Comply with mineral-fiber requirements of assembly. PART 3 - EXECUTION 3.1 EXAMINATION A. Examine areas and substrates including welded hollow-metal frames and framing, with Installer present, for compliance with requirements and other conditions affecting performance. B. Examine panels before installation. Reject panels that are wet, moisture damaged, and mold damaged. C. Proceed with installation only after unsatisfactory conditions have been corrected. 3.2 APPLYING AND FINISHING PANELS, GENERAL A. Comply with ASTM C 840. B. Install ceiling panels across framing to minimize the number of abutting end joints and to avoid abutting end joints in central area of each ceiling. Stagger abutting end joints of adjacent panels not less than one framing member. C. Install panels with face side out. Butt panels together for a light contact at edges and ends with not more than 1/16 inch of open space between panels. Do not force into place. D. Locate edge and end joints over supports, except in ceiling applications where intermediate supports or gypsum board back-blocking is provided behind end joints. Do not place tapered edges against cut edges or ends. Stagger vertical joints on opposite sides of partitions. Do not make joints other than control joints at corners of framed openings. E. Form control and expansion joints with space between edges of adjoining gypsum panels. F. Cover both faces of support framing with gypsum panels in concealed spaces (above ceilings, etc.), except in chases braced internally. CORNELL UNIVERSITY SECTION 09 29 00 Ithaca, New York GYPSUM BOARD CLARA DICKSON HALL GYPSUM BOARD 09 29 00-5 WASTE & STORM LINE REPLACEMENT DECEMBER 31, 2014 1. Fit gypsum panels around ducts, pipes, and conduits. 2. Where partitions intersect structural members projecting below underside of floor/roof slabs and decks, cut gypsum panels to fit profile formed by structural members; allow 1/4- to 3/8-inch wide joints to install sealant. G. Isolate perimeter of gypsum board applied to non-load-bearing partitions at structural abutments, except floors. Provide 1/4- to 1/2-inch- wide spaces at these locations and trim edges with edge trim where edges of panels are exposed. Seal joints between edges and abutting structural surfaces with acoustical sealant. H. Attachment to Steel Framing: Attach panels so leading edge or end of each panel is attached to open (unsupported) edges of stud flanges first. I. Install sound attenuation blankets before installing gypsum panels unless blankets are readily installed after panels have been installed on one side. 3.3 APPLYING TILE BACKING PANELS A. Cementitious Backer Units: ANSI A108.11, at showers, tubs, and locations indicated to receive tile. B. Where tile backing panels abut other types of panels in same plane, shim surfaces to produce a uniform plane across panel surfaces. 3.4 INSTALLING TRIM ACCESSORIES A. General: For trim with back flanges intended for fasteners, attach to framing with same fasteners used for panels. Otherwise, attach trim according to manufacturer's written instructions. B. Control Joints: Install control joints according to ASTM C 840 and in specific locations approved by Architect for visual effect. 3.5 FINISHING GYPSUM BOARD A. General: Treat gypsum board joints, interior angles, edge trim, control joints, penetrations, fastener heads, surface defects, and elsewhere as required to prepare gypsum board surfaces for decoration. Promptly remove residual joint compound from adjacent surfaces. B. Gypsum Board Finish Levels: Finish panels to levels indicated below and according to ASTM C 840: 1. Level 1: Ceiling plenum areas, concealed areas, and where indicated. 2. Level 2: Panels that are substrate for tile, where indicated on Drawings 3. Level 3: Where indicated on Drawings 4. Level 4: Wall surfaces receiving flat paint. CORNELL UNIVERSITY SECTION 09 29 00 Ithaca, New York GYPSUM BOARD CLARA DICKSON HALL GYPSUM BOARD 09 29 00-6 WASTE & STORM LINE REPLACEMENT DECEMBER 31, 2014 5. Level 5: surfaces receiving gloss or semigloss paint. C. Cementitious Backer Units: Finish according to manufacturer's written instructions. 3.6 PROTECTION A. Protect adjacent surfaces from drywall compound and promptly remove from floors and other non-drywall surfaces. Repair surfaces stained, marred, or otherwise damaged during drywall application. B. Protect installed products from damage from weather, condensation, direct sunlight, construction, and other causes during remainder of the construction period. C. Remove and replace panels that are wet, moisture damaged, and mold damaged. END OF SECTION 092900