1. Scope

1.1 This specification covers the gypsum boards described in 1.1.1-1.1.9.

Note 1Specifications C840, C841, C844 and C1280 contain application procedures for gypsum board.

1.1.1 Gypsum wallboard , designed for use on walls, ceilings, or partitions and that affords a surface suitable to receive decoration.

1.1.2 Predecorated gypsum board, designed for use as the finished surfacing for walls, ceilings, or partitions.

1.1.3 Gypsum backing board , coreboard, and shaftliner board, designed for use as a base in multilayer systems or as a gypsum stud or core in semisolid or solid gypsum board partitions.

Note 2The terms backing board and coreboard refer to different end uses. The term gypsum backing board, as used in this specification shall include gypsum coreboard unless otherwise stated.

1.1.4 Water-resistant gypsum backing board, designed primarily to be used as a base for the application of ceramic or plastic tile on walls or ceilings. This product is also suitable for decoration.

1.1.5 Exterior gypsum soffit board, designed for use on exterior soffits and carport ceilings that are completely protected from contact with liquid water.

1.1.6 Gypsum sheathing board, designed for use as sheathing on buildings.

1.1.7 Gypsum base for veneer plaster, designed for use as a base for the application of gypsum veneer plaster.

1.1.8 Gypsum lath, designed for use as a base for the application of gypsum plaster.

1.1.9 Gypsum ceiling board, designed for use on interior ceilings with framing spaced not more than 24 in. [610 mm] on center and that affords a surface suitable to recieve water-based texture and other decoration. This product is also suitable for use on interior walls.

1.2 Specifications applicable to all gypsum boards are located in Section 1.4 and 13-15. Specifications applicable to specific gypsum boards are located in the following sections:

1.3 The values stated in either inch-pound units or SI (metric) are to be regarded separately as standard. Within the text, the SI units are shown in brackets. The values stated in each system shall be used independent of the other. Values from the two systems shall not be combined.

2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

ASTM Standards

C11 Terminology Relating to Gypsum and Related Building Materials and Systems

C22/C22M Specification for Gypsum

C473 Test Methods for Physical Testing of Gypsum Panel Products

C645 Specification for Nonstructural Steel Framing Members

C840 Specification for Application and Finishing of Gypsum Board

C841 Specification for Installation of Interior Lathing and Furring

C844 Specification for Application of Gypsum Base to Receive Gypsum Veneer Plaster

C1264 Specification for Sampling, Inspection, Rejection, Certification, Packaging, Marking, Shipping, Handling, and Storage of Gypsum Panel Products

C1280 Specification for Application of Exterior Gypsum Panel Products for Use as Sheathing

E84 Test Method for Surface Burning Characteristics of Building Materials

E96/E96M Test Methods for Water Vapor Transmission of Materials

E119 Test Methods for Fire Tests of Building Construction and Materials

Keywords

ceiling; coreboard; drywall; exterior gypsum soffit board; foil-backed; gypsum; gypsum backing board; gypsum base; gypsum board; gypsum ceiling board; gypsum coreboard; gypsum lath; gypsum sheathing; gypsum sheathing board; gypsum wallboard; laminated gypsum board; partitions; plaster; predecorated gypsum board; shaftliner; sheathing; type X; veneer base; veneer plaster; wall; wallboard; water-resistant gypsum board;

ICS Code

ICS Number Code 91.060.10 (Walls. Partitions. Facades); 91.100.10 (Cement. Gypsum. Lime. Mortar)

DOI: 10.1520/C1396_C1396M-02

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