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  • ASTM C840-18a

ASTM C840-18a

Standard Specification for Application and Finishing of Gypsum Board

ASTM International, 10/01/2018

Publisher: ASTM

File Format: PDF

$41.00$83.00


Published:01/10/2018

Pages:21

File Size:1 file , 510 KB

Note:This product is unavailable in Russia, Ukraine, Belarus

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

1.2 Details 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 Members

9

III

Application of Gypsum Board by Adhesive Nail-on to Wood Framing
     Members

10

IV

Semi-solid Gypsum Board Partitions

11

V

Solid Gypsum Board Partitions

12

VI

Application of Gypsum Board with Adhesives to Interior Masonry or
     Concrete Walls

13

VII

Application of Gypsum Board to Rigid Foam Insulation

14

VIII

Application of Gypsum Board to Steel Framing and Furring

15

IX

Arches and Bending Radii

16

X

Application of Gypsum Board to Receive Tile by Adhesive Application

17

XI

Exterior Application of Gypsum Wallboard and Exterior Gypsum Soffit
     Board

18

XII

Floating Interior Angles

19

XIII

Control (Expansion) Joints

20

XIV

Foil-backed Gypsum Board

21

XV

Application of Vinyl Faced Gypsum Board

22

1.6 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.

1.7 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.

1.8 The following precautionary caveat pertains only to Sections 6 - 26. 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

For specific precautionary statements, see

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