09 29 00 GYPSUM BOARD.doc

SECTION 09 29 00

GYPSUM BOARD

PART 1 GENERAL

1.1 REFERENCES

1.1.1 The publications listed below form a part of this specification to the extent referenced. The publications are referred to in the text by the basic designation only. Unless otherwise noted, the latest published version and/or revision shall be used.

1.1.1.1 AMERICAN NATIONAL STANDARDS INSTITUTE (ANSI)

a. ANSI A108.11 Interior Installation of Cementitious Backer Units

b. ANSI/CTI A108/A118/A136.1 Specification for the Installation of Ceramic Tile

1.1.1.2 ASTM INTERNATIONAL (ASTM)

a. ASTM C 1002 Standard Specification for Steel Self-Piercing Tapping Screws for the Application of Gypsum Panel Products or Metal Plaster Bases to Wood Studs or Steel Studs

b. ASTM C 1047 Standard Specification for Accessories for Gypsum Wallboard and Gypsum Veneer Base

c. ASTM C 1177 Standard Specification for Glass Mat Gypsum Substrate for Use as Sheathing

d. ASTM C 1178 Standard Specification for Glass Mat Water-Resistant Gypsum Backing Panel

e. ASTM C 1396 Standard Specification for Gypsum Board

f. ASTM C 36 Gypsum Wallboard

g. ASTM C 442 Gypsum Backing Board, Gypsum Coreboard, and Gypsum Shaftliner Board

h. ASTM C 475 Joint Compound and Joint Tape for Finishing Gypsum Board

i. ASTM C 514 Standard Specification for Nails for the Application of Gypsum Board

j. ASTM C 630 Water-Resistant Gypsum Backing Board

k. ASTM C 79 Treated Core and Nontreated Core Gypsum Sheathing Board

l. ASTM C 840 Application and Finishing of Gypsum Board

m. ASTM C 954 Steel Drill Screws for the Application of Gypsum Panel Products or Metal Plaster Bases to Steel Studs from 0.033 in. to 0.112 in.

in Thickness

n. ASTM D 1037 Evaluating Properties of Wood-Base Fiber and Particle Panel Materials

o. ASTM D 1149 Standard Test Method for Rubber Deterioration - Surface Ozone Cracking in a Chamber

p. ASTM D 226 Standard Specification for Asphalt-Saturated Organic Felt Used in Roofing and Waterproofing

q. ASTM D 2394 Simulated Service Testing of Wood and Wood-Base Finish Flooring

r. ASTM D 412 Standard Test Methods for Vulcanized Rubber and Thermoplastic Elastomers - Tension

s. ASTM D 5420 Impact Resistance of Flat, Rigid Plastic Specimen by Means of a Strike Impacted by a Falling Weight (Gardner Impact)

t. ASTM D 624 Tear Strength of Conventional Vulcanized Rubber and Thermoplastic Elastomers

u. ASTM E 695 Measuring Relative Resistance of Wall, Floor, and Roof Construction to Impact Loading

v. ASTM E 84 Standard Test Method for Surface Burning Characteristics of Building Materials

1.1.1.3 GYPSUM ASSOCIATION (GA)

a. GA 214 Recommended Levels of Gypsum Board Finish

b. GA 216 Application and Finishing of Gypsum Board

c. GA 224 Installation of Predecorated Gypsum Board

d. GA 253 Application of Gypsum Sheathing

e. GA 600 Fire Resistance Design Manual

1.1.1.4 U.S. GREEN BUILDING COUNCIL (USGBC)

a. LEED Leadership in Energy and Environmental Design(tm) Green Building Rating System for New Construction (LEED-NC)

1.1.1.5 UNDERWRITERS LABORATORIES (UL)

a. UL Fire Resistance Fire Resistance Directory

1.2 SUBMITTALS

1.2.1 Government approval may be required on any of the following items. Items requiring submittals will be listed on the AF Form 66. Provide copies of all submittals per the requirements in Section 01 33 00, Submittal Procedures, or as listed on the AF Form 66.

1.2.1.1 SD-03 Product Data

a. Impact Resistant Gypsum Board

b. Accessories

c. Gypsum Board;

(1) Submit documentation indicating percentage of post-industrial and post-consumer recycled content per unit of product. Indicate relative dollar value of recycled content products to total dollar value of products included in project.

(2) Adhesives;

d. Joint Treatment Materials

(1) Submit manufacturer's product data, indicating VOC content.

1.2.1.2 SD-04 Samples

a. Predecorated gypsum board

(1) Submit for each color and pattern of predecorated gypsum board. Where colors are not indicated, submit color selection samples of not less than eight of the manufacturer's standard colors.

1.2.1.3 SD-07 Certificates

a. Asbestos Free Materials

(1) Certify that gypsum board types, gypsum backing board types, cementitious backer units, and joint treating materials do not contain asbestos.

1.2.1.4 SD-08 Manufacturer's Instructions

a. Material Safety Data Sheets

1.2.1.5 SD-10 Operation and Maintenance Data

a. Manufacturer maintenance instructions

b. Waste Management

1.2.1.6 SD-11 Closeout Submittals

a. Local/Regional Materials;

b. Gypsum Board;

c. Adhesives;

1.3 DELIVERY, STORAGE, AND HANDLING

1.3.1 Delivery

1.3.1.1 Deliver materials in the original packages, containers, or bundles with each bearing the brand name, applicable standard designation, and name of manufacturer, or supplier.

1.3.2 Storage

1.3.2.1 Keep materials dry by storing inside a sheltered building. Where necessary to store gypsum board and cementitious backer units outside, store off the ground, properly supported on a level platform, and protected from direct exposure to rain, snow, sunlight, and other extreme weather conditions. Provide adequate ventilation to prevent condensation. Store per manufacturer's recommendations for allowable temperature and humidity range. Gypsum wallboard shall not be stored with materials which have high emissions of volatile organic compounds (VOCs) or other contaminants. Do not store panels near materials that may off gas or emit harmful fumes, such as kerosene heaters, fresh paint, or adhesives.

1.3.3 Handling

1.3.3.1 Neatly stack gypsum board and cementitious backer units flat to prevent sagging or damage to the edges, ends, and surfaces.

1.4 ENVIRONMENTAL CONDITIONS

1.4.1 Temperature

1.4.1.1 Maintain a uniform temperature of not less than 50 degrees F in the structure for at least 48 hours prior to, during, and following the application of gypsum board, cementitious backer units, and joint treatment materials, or the bonding of adhesives.

1.4.2 Exposure to Weather

1.4.2.1 Protect gypsum board and cementitious backer unit products from direct exposure to rain, snow, sunlight, and other extreme weather conditions.

1.4.3 Temporary Ventilation

1.4.3.1 Provide temporary ventilation for work of this section.

1.5 SUSTAINABLE DESIGN REQUIREMENTS

1.5.1 Local/Regional Materials

1.5.1.1 Use materials or products extracted, harvested, or recovered, as well as manufactured, within a 500 mile radius from the project site, if available from a minimum of three sources.

1.6 QUALIFICATIONS

1.6.1 Furnish type of gypsum board work specialized by the installer with a minimum of 3 years of documented successful experience.

1.7 SCHEDULING

1.7.1 The gypsum wall board shall be taped, spackled and primed before the installation of the highly-emitting materials.

PART 2 PRODUCTS

2.1 MATERIALS

2.1.1 Conform to specifications, standards and requirements specified. Provide gypsum board types, gypsum backing board types, cementitious backing units, and joint treating materials manufactured from asbestos free materials only. Submit Material Safety Data Sheets and manufacturer maintenance instructions for gypsum materials including adhesives.

2.1.1.1 Gypsum Board

a. ASTM C 36 and ASTM C 1396. Gypsum board shall contain a minimum of 5 percent post-consumer recycled content, or a minimum of 20 percent post-industrial recycled content. Paper facings shall contain 100 percent post-consumer recycled paper content. Gypsum cores shall contain a minimum of 95 percent post-industrial recycled gypsum content.

(1) Regular

(a) 48 inch wide, 5/8 inch thick, tapered edges.

(2) Type X (Special Fire-Resistant)

(a) 48 inch wide, 5/8 inch thick, tapered edges.

2.1.1.2 Impact Resistant Gypsum Board

a. 48 inch wide, 5/8 inch thick, tapered edges.

(1) Reinforced gypsum panel with imbedded fiber mesh or lexan backing testing in accordance with the following tests. Provide fasteners that meet manufacturer requirements and specifications stated within this section. Impact resistant gypsum board, when tested in accordance with ASTM E 84, have a flame spread rating of 25 or less and a smoke developed rating of 50 or less.

(a) Structural Failure Test

1. ASTM E 695 or ASTM D 2394 for structural failure (drop penetration). ASTM E 695 using a 60 lb sand filled leather bag, resisting no less than 300 ft. lb. cumulative impact energy before failure or ASTM D 2394 using 5.5 inch hemispherical projectile resisting no less than 264 ft. lb. before failure. Provide test specimen stud spacing a minimum 16 inch on center.

(b) Indentation Test

1. ASTM D 5420 or ASTM D 1037 for indentation resistance. ASTM D 5420 using a 32 oz weight with a 5/8 inch hemispherical impacting head dropped once 3 feet creating not more than 0.137 inch indentation or ASTM D 1037 using no less than 470 lb weight applied to the 0.438 inch diameter ball to create not more than a 0.0197 inch indentation depth.

2.1.1.3 Joint Treatment Materials

a. ASTM C 475. Use all purpose joint and texturing compound containing inert fillers and natural binders, including lime compound. Pre-mixed compounds shall be free of antifreeze, vinyl adhesives, preservatives, biocides and other slow releasing compounds.

(1) Embedding Compound

(a) Specifically formulated and manufactured for use in embedding tape at gypsum board joints and compatible with tape, substrate and fasteners.

(2) Finishing or Topping Compound

(a) Specifically formulated and manufactured for use as a finishing compound.

(3) All-Purpose Compound

(a) Specifically formulated and manufactured to serve as both a taping and a finishing compound and compatible with tape, substrate and fasteners.

(4) Setting or Hardening Type Compound

(a) Specifically formulated and manufactured for use with fiber glass mesh tape.

(5) Joint Tape

(a) Use cross-laminated or tapered edge tape recommended by the manufacturer. Paper and fiberglass joint tape are not permitted.

2.1.1.4 Fasteners

a. Screws

(1) ASTM C 1002, Type "G", Type "S" or Type "W" steel drill screws for fastening gypsum board to gypsum board, wood framing members and steel framing members less than 0.033 inch thick. ASTM C 954 steel drill screws for fastening gypsum board to steel framing members 0.033 to 0.112 inch thick. Provide cementitious backer unit screws with a polymer coating.

2.1.1.5 Accessories

a. ASTM C 1047. Fabricate from corrosion protected steel or plastic designed for intended use. Accessories manufactured with paper flanges are not acceptable. Flanges shall be free of dirt, grease, and other materials that may adversely affect bond of joint treatment. Provide prefinished or job decorated materials. For predecorated gypsum board provide prefinished metal or plastic trim to match predecorated gypsum board.

2.1.1.6 Asphalt Impregnated Building Felt

a. Provide a 15 lb asphalt moisture barrier over gypsum sheathing. Conforming to ASTM D 226 Type 1 (No. 15) for asphalt impregnated building felt.

2.1.1.7 Water

a. Provide clean, fresh, and potable water.

PART 3 EXECUTION

3.1 EXAMINATION

3.1.1 Framing and Furring

3.1.1.1 Verify that framing and furring are securely attached and of sizes and spacing to provide a suitable substrate to receive gypsum board and cementitious backer units. Verify that all blocking, headers and supports are in place to support plumbing fixtures and to receive soap dishes, grab bars, towel racks, and similar items. Do not proceed with work until framing and furring are acceptable for application of gypsum board and cementitious backer units.

3.1.2 Gypsum Board and Framing

3.1.2.1 Verify that surfaces of gypsum board and framing to be bonded with an adhesive are free of dust, dirt, grease, and any other foreign matter. Do not proceed with work until surfaces are acceptable for application of gypsum board with adhesive.

3.1.3 Masonry and Concrete Walls

3.1.3.1 Verify that surfaces of masonry and concrete walls to receive gypsum board applied with adhesive are dry, free of dust, oil, form release agents, protrusions and voids, and any other foreign matter. Do not proceed with work until surfaces are acceptable for application of gypsum board with adhesive.

3.2 APPLICATION OF GYPSUM BOARD

3.2.1 Apply gypsum board to framing and furring members in accordance with ASTM C 840 or GA 216 and the requirements specified. Apply gypsum board with separate panels in moderate contact; do not force in place. Stagger end joints of adjoining panels. Neatly fit abutting end and edge joints. Use gypsum board of maximum practical length; select panel sizes to minimize waste. Cut out gypsum board to make neat, close, and tight joints around openings. In vertical application of gypsum board, provide panels in lengths required to reach full height of vertical surfaces in one continuous piece. Lay out panels to minimize waste; reuse cutoffs whenever feasible. Surfaces of gypsum board and substrate members may be bonded together with an adhesive, except where prohibited by fire rating(s). Treat edges of cutouts for plumbing pipes, screwheads, and joints with water-resistant compound as recommended by the gypsum board manufacturer. Provide type of gypsum board for use in each system specified herein as indicated.

3.2.1.1 Application of Gypsum Board to Steel Framing and Furring

a. Apply in accordance with ASTM C 840, System VIII or GA 216.

3.2.1.2 Floating Interior Angles

a. Minimize framing by floating corners with single studs and drywall clips. Locate the attachment fasteners adjacent to ceiling and wall intersections in accordance with ASTM C 840, System XII or GA 216, for single-ply and two-ply applications of gypsum board to wood framing.

3.2.1.3 Control Joints

a. Install expansion and contraction joints in ceilings and walls in accordance with ASTM C 840, System XIII or GA 216. Fill control joints between studs in fire-rated construction with firesafing insulation to match the fire-rating of construction.

3.2.1.4 Application of Impact Resistant Gypsum Board

a. Apply in accordance with applicable system of ASTM C 840 as specified or GA 216. Follow manufacturers written instructions on how to cut, drill and attach board.

3.3 FINISHING OF GYPSUM BOARD

3.3.1 Tape and finish gypsum board in accordance with ASTM C 840, GA 214 and GA 216. Finish plenum areas above ceilings to Level 1 in accordance with GA 214. Finish water resistant gypsum backing board, ASTM C 630, to receive ceramic tile to Level 2 in accordance with GA 214. . Finish walls receiving a textured finish to Level 4 in accordance with GA 214. Finish all other gypsum board walls, partitions and ceilings to Level 5 in accordance with GA 214. Provide joint, fastener depression, and corner treatment. Tool joints as smoothly as possible to minimize sanding and dust. Do not use fiber glass mesh tape with conventional drying type joint compounds; use setting or hardening type compounds only. Provide treatment for water-resistant gypsum board as recommended by the gypsum board manufacturer. Protect workers, building occupants, and HVAC systems from gypsum dust.

3.3.1.1 Uniform Surface

a. Wherever gypsum board is to receive eggshell, semigloss or gloss paint finish, or where severe, up or down lighting conditions occur, finish gypsum wall surface in accordance to GA 214 Level 5. In accordance with GA 214 Level 5, apply a thin skim coat of joint compound to the entire gypsum board surface, after the two-coat joint and fastener treatment is complete and dry.

3.4 SEALING

3.4.1 Seal openings around pipes, fixtures, and other items projecting through gypsum board and cementitious backer units as specified in Section 07 92 00 Joint Sealants. Apply material with exposed surface flush with gypsum board or cementitious backer units.

3.4.1.1 Sealing for Glass Mat or Reinforced Gypsum Board Sheathing

a. Apply silicone sealant in a 3/8 inch bead to all joints and trowel flat. Apply enough of the same sealant to all fasteners penetrating through the glass mat gypsum board surface to completely cover the penetration when troweled flat.

3.5 FIRE-RESISTANT ASSEMBLIES

3.5.1 Wherever fire-rated construction is indicated, provide materials and application methods, including types and spacing of fasteners, wall and ceiling framing in accordance with the specifications contained in UL Fire Resistance for the Design Number(s) indicated, or GA 600 for the File Number(s) indicated. Joints of fire-rated gypsum board enclosures shall be closed and sealed in accordance with UL test requirements or GA requirements. Seal penetrations through rated partitions and ceilings tight in accordance with tested systems.

3.6 PATCHING

3.6.1 Patch surface defects in gypsum board to a smooth, uniform appearance, ready to receive finishes.

3.7 SHAFTWALL FRAMING

3.7.1 Install the shaftwall system in accordance with the system manufacturer's published instructions. Coordinate bucks, anchors, blocking and other items placed in or behind shaftwall framing with electrical and mechanical work. Patch or replace fireproofing materials which are damaged or removed during shaftwall construction.

3.8 WASTE MANAGEMENT

3.8.1 As specified in Waste Management Plan and as follows. Separate clean waste gypsum products from contaminants. Do not include wood, plastic, metal, asphalt-impregnated gypsum board, or any gypsum board coated with glass fiber, vinyl, decorative paper, or other finish. Place in designated area and protect from moisture and contamination.

3.8.2 Identify manufacturer's policy for collection or return of remaining construction scrap, unused material, demolition scrap, and packaging material. Institute demolition and construction recycling to take advantage of manufacturer's programs. When such a service is not available, seek local recyclers to reclaim the materials.

END OF SECTION 09 29 00

PAGE

PAGE

QSEU 09-0402

09 29 00-1