ASTM-C840 Standard Specification for Application and Finishing of Gypsum Board

ASTM-C840 - 2019 EDITION - CURRENT
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Standard Specification for Application and Finishing of Gypsum Board
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Scope

1.1 This specification covers the minimum requirements for the methods of application and finishing of gypsum board, including related items and accessories.

1.2Details of construction for a specific assembly to achieve the required fire resistance shall be obtained from reports of fire-resistance tests, engineering evaluations, or listings from recognized fire testing laboratories.

1.2.1 Where this specification is more stringent (size or thickness of framing: size and spacing of fasteners) than the fire-rated construction, this specification shall govern.

1.3 Where sound control is required for a gypsum board assembly, details of construction shall be in accordance with reports of acoustical tests of assemblies that have met the required acoustical values.

1.4 Unheated spaces above gypsum board ceilings shall be properly ventilated (see Appendix X2).

1.5 The various application systems are located in the following sections:

I Application of Single-Ply Gypsum Board to Wood Framing Members 8
II Application of Two-Ply Gypsum Board to Wood Framing Members9
III Application of Gypsum Board by Adhesive Nail-On to Wood Framing Members10
IV Semi-Solid Gypsum Board Partitions11
V Solid Gypsum Board Partitions12
VI Application of Gypsum Board with Adhesives to Interior Masonry or Concrete Walls13
VII Application of Gypsum Board to Rigid Foam Insulation14
VIII Application of Gypsum Board to Steel Framing and Furring15
IX Arches and Bending Radii16
X Application of Gypsum Board to Receive Tile by Adhesive Application17
XI Exterior Application of Gypsum Wallboard and Exterior Gypsum Soffit Board18
XII Floating Interior Angles19
XIII Control (Expansion) Joints20
XIV Foil-Backed Gypsum Board21

The values stated in inch-pound units are to be regarded as the standard. The SI (metric) values given in parentheses are approximate and are provided for information purposes only.

1.6 The text of this specification references notes and footnotes which provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of the specification.

1.7 The following precautionary caveat pertains only to Sections 6-23. This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

1.7.1 For specific precautionary statements, see 4.1.1 , 4.1.2 and 22.5.

Keywords

ceiling; gypsum; wallboard; walls; ICS Number Code 91.100.10 (Cement. Gypsum. Lime. Mortar)

To find similar documents by ASTM Volume:

04.01 (Cement; Lime; Gypsum)

To find similar documents by classification:

91.100.10 (Cement. Gypsum. Lime. Mortar)

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Document Number

ASTM-C0840-19

Revision Level

2019 EDITION

Status

Current

Modification Type

Revision

Publication Date

June 1, 2019

Document Type

Specification

Page Count

21 pages

Committee Number

C11.03