ASTM C1396/C1396M-17 - 1.7.2017
 
1. Scope

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

Note 1: Specifications 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, or in shaft wall assemblies.

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

 

 

Section

 

Gypsum Wallboard, Predecorated Gypsum Board, and Laminated Gypsum Board

5

 

Gypsum backing board, gypsum coreboard,
gypsum shaftliner board

6

 

Water-resistant gypsum backing board

7

 

Exterior gypsum soffit board

8

 

Gypsum sheathing board

9

 

Gypsum base for veneer plaster

10

 

Gypsum lath

11

 

Gypsum Ceiling Board

12

1.3 The values stated in either SI units or inch-pound units are to be regarded separately as standard. Within the text, the SI units are shown in brackets. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard

1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

 
2. Referenced Documents

C471M-20ae1

Standard Test Methods for Chemical Analysis of Gypsum and Gypsum Products (Metric) (Includes all amendments and changes 6/2/2021).

C22/C22M-00(2021)

Standard Specification for Gypsum

C11-23

Standard Terminology Relating to Gypsum and Related Building Materials and Systems

E119-22

Standard Test Methods for Fire Tests of Building Construction and Materials

E96/E96M-23

Standard Test Methods for Gravimetric Determination of Water Vapor Transmission Rate of Materials

C840-23

Standard Specification for Application and Finishing of Gypsum Board

C645-18

Standard Specification for Nonstructural Steel Framing Members

C473-19

Standard Test Methods for Physical Testing of Gypsum Panel Products

E84-23d

Standard Test Method for Surface Burning Characteristics of Building Materials (Includes all amendments and changes 1/29/2024).

C844-15(2021)

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

D3273-21

Standard Test Method for Resistance to Growth of Mold on the Surface of Interior Coatings in an Environmental Chamber

C1280-18(2023)

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

C1264-19

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

C841-23

Standard Specification for Installation of Interior Lathing and Furring