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ASTM C1280-99

Historical Revision

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

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1.1 This specification covers the minimum requirements for, and methods of application of, gypsum sheathing for use as a substrate for exterior wall cladding.

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 This specification shall govern where it is more stringent (size or thickness of framing and size and spacing of fasteners) than the fire-rated construction.

1.3 Where sound control is required for a gypsum sheathing assembly, the details of construction shall be in accordance with the acoustical test report of an assembly that has met the required acoustical value(s).

1.3.1 This specification shall govern where it is more stringent (size or thickness of framing and size and spacing of fasteners) than the sound-rated construction.

1.4 Where resistance to racking loads or shear is required for a gypsum sheathing assembly, the details of construction shall be in accordance with the racking or shear test report of an assembly that has met the required racking or shear value(s).

1.4.1 This specification shall govern where it is more stringent (size or thickness of framing and size and spacing of fasteners) than the racking or shear-tested construction.

1.5 The values stated in inch-pound units are to be regarded as the standard. The SI equivalents of inch-pound units may be approximate.

1.6 The text of this standard references footnotes which provide explanatory material. These footnotes shall not be considered as requirements of the standard.

1.7 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.


SDO ASTM: ASTM International
Document Number C1280
Publication Date Dec. 10, 1999
Language en - English
Page Count 3
Revision Level 99
Supercedes
Committee C11.03
Publish Date Document Id Type View
Nov. 1, 2018 C1280-18 Revision
Nov. 15, 2013 C1280-13A Revision
Feb. 15, 2013 C1280-13 Revision
July 15, 2012 C1280-12A Revision
April 1, 2012 C1280-12 Revision
Dec. 1, 2011 C1280-11 Revision
May 1, 2009 C1280-09 Revision
Nov. 1, 2007 C1280-07 Revision
May 1, 2004 C1280-04 Revision
Dec. 10, 1999 C1280-99 Revision
Oct. 1, 2023 C1280-18R23 Reaffirmation