36C78619Q0272-005.pdf

06-01-14

GYPSUM BOARD

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SECTION 09 29 00

GYPSUM BOARD

PART 1 - GENERAL

1.1 DESCRIPTION

A. This section specifies installation and finishing of gypsum board.

1.2 TERMINOLOGY

A. Definitions and description of terms to be in accordance with ASTM C11, C840, and as specified.

1.3 SUBMITTALS

A. Submit in accordance with Section 01 33 23, SHOP DRAWINGS, PRODUCT

DATA, AND SAMPLES.

B. Manufacturer's Literature and Data:

1. Cornerbead and edge trim.

2. Finishing materials.

3. Gypsum board, each type.

1.4 DELIVERY, IDENTIFICATION, HANDLING AND STORAGE

A. In accordance with the requirements of ASTM C840.

1.5 ENVIRONMENTAL CONDITIONS

A. In accordance with the requirements of ASTM C840.

1.6 APPLICABLE PUBLICATIONS

A. Publications listed below form a part of this specification to extent referenced. Publications are referenced in text by the basic designation only. Comply with applicable provisions and recommendations of the following, except as otherwise shown or specified.

B. American Society for Testing and Materials (ASTM):

C11-13 Terminology Relating to Gypsum and Related

Building Materials and Systems

C475/C475M-12 Joint Compound and Joint Tape for Finishing

Gypsum Board

C840-11 Application and Finishing of Gypsum Board

C954-11 Steel Drill Screws for the Application of

Gypsum Panel Products or Metal Plaster Bases to

Steel Studs from 0.033 in. (0.84 mm) to 0.112

in. (2.84 mm) in Thickness

C1002-07 Steel Self-Piercing Tapping Screws for the

Application of Gypsum Panel Products or Metal

Plaster Bases to Wood Studs or Steel Studs

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C1047-10a Accessories for Gypsum Wallboard and Gypsum

Veneer Base

C1177/C1177M-08 Glass Mat Gypsum Substrate for Use as Sheathing

C1280-11 Application of Exterior Gypsum Panel Products for Use as Sheathing

C1325-08b Fiber Mat Reinforced Cementitious Backer Unit

C1396/C1396M-13 Gypsum Board

C1658/C1658M Glass Mat Gypsum Panels

D3273-12 Resistance to Growth of Mold on the Surface of

Interior Coatings in an Environmental Chamber

PART 2 - PRODUCTS

2.1 GYPSUM BOARD

A. Gypsum Board (Typical) - Mold and Moisture-Resistant: ASTM C1396, (Type

X,) (1/2 inch) thick unless shown otherwise.

B. Provide gypsum cores with a minimum of 95 percent post industrial recycled gypsum content. Provide paper facings with 100 percent post-consumer recycled paper content.

2.2 ACCESSORIES

A. ASTM C1047, except form of (0.015 inch) thick zinc coated steel sheet or rigid PVC plastic.

2.3 FASTENERS

A. ASTM C1002 and ASTM C840, except as otherwise specified.

B. ASTM C954, for steel studs thicker than 0.04 mm (0.33 inch).

2.4 FINISHING MATERIALS AND LAMINATING ADHESIVE

A. ASTM C475 and ASTM C840.

B. Provide material free of antifreeze, vinyl adhesives, preservatives and biocides; VOC content within limits of stated performance requirements.

C. Joint Tape: Use cross-laminated, tapered edge, reinforced paper, or fiber glass mesh tape recommended by the manufacturer.

PART 3 - EXECUTION

3.1 GYPSUM BOARD HEIGHTS

A. Extend gypsum board from floor to heights as follows, unless shown otherwise:

1. At existing ceilings.

3.2 INSTALLING GYPSUM BOARD

A. Install gypsum board in accordance with ASTM C840, except as otherwise specified.

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B. Provide and install moisture and mold-resistant glass-mat-faced interior gypsum wallboard products with moisture-resistant surfaces complying with ASTM C1658 where shown and in high humidity and wet areas or locations which might be subject to moisture exposure during construction.

1. High humidity and wet areas include, but not limited to, wallboard installed at building perimeter, any wallboard furred to concrete or masonry construction.

C. Install control joints in accordance with ASTM C840.

D. Accessories:

1. Install the following accessories in accordance with ASTM C1047.

a. Corner Beads.

b. Edge Trim (casing beads).

3.3 FINISHING OF GYPSUM BOARD

A. Finish joints, edges, corners, and fastener heads in accordance with

ASTM C840.

B. Use Level 5 finish for all finished areas open to public view; level 2 finish in utility, maintenance and service areas and level 1 in plenums, attics and other concealed areas.

3.4 REPAIRS

A. After taping and finishing has been completed, and before decoration, repair all damaged and defective work, including non-decorated surfaces.

B. Patch holes or openings 13 mm (1/2 inch) or less in diameter, or equivalent size, with a setting type finishing compound or patching plaster.

C. Repair holes or openings over 13 mm (1/2 inch) diameter, or equivalent size, with 16 mm (5/8 inch) thick gypsum board secured in such a manner as to provide solid substrate equivalent to undamaged surface.

D. Tape and refinish scratched, abraded or damaged finish surfaces including cracks and joints in non-decorated surface to provide fire protection equivalent to the fire rated construction.

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