Standard Specification for Application and Finishing of Gypsum Board

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 8II Application of Two-Ply Gypsum Board to Wood Framing Members9III Application of Gypsum Board by Adhesive Nail-On to Wood Framing Members10IV Semi-Solid Gypsum Board Partitions11V Solid Gypsum Board Partitions12VI Application of Gypsum Board with Adhesives to Interior Masonry or Concrete Walls13VII Application of Gypsum Board to Rigid Foam Insulation14VIII Application of Gypsum Board to Steel Framing and Furring15IX Arches and Bending Radii16X Application of Gypsum Board to Receive Tile by Adhesive Application17XI Exterior Application of Gypsum Wallboard and Exterior Gypsum Soffit Board18XII Floating Interior Angles19XIII Control (Expansion) Joints20XIV 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.

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ASTM C840-00 - Standard Specification for Application and Finishing of Gypsum Board
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NOTICE: This standard has either been superseded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
Designation: C 840 – 00
Standard Specification for
1
Application and Finishing of Gypsum Board
This standard is issued under the fixed designation C 840; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope 1.6 The text of this specification references notes and
footnotes which provide explanatory material. These notes and
1.1 This specification covers the minimum requirements for
footnotes (excluding those in tables and figures) shall not be
the methods of application and finishing of gypsum board,
considered as requirements of the specification.
including related items and accessories.
1.7 The following precautionary caveat pertains only to
1.2 Where a fire resistance rating is required for a gypsum
Sections 6-23. This standard does not purport to address all of
board assembly, details of construction shall be in accordance
the safety concerns, if any, associated with its use. It is the
with reports of fire tests of assemblies that have met the
responsibility of the user of this standard to establish appro-
requirements of the fire rating imposed.
priate safety and health practices and determine the applica-
1.2.1 Where this specification is more stringent (size or
bility of regulatory limitations prior to use.
thickness of framing: size and spacing of fasteners) than the
1.7.1 For specific precautionary statements, see 4.1.1, 4.1.2
fire-rated construction, this specification shall govern.
and 22.5.
1.3 Where sound control is required for a gypsum board
assembly, details of construction shall be in accordance with
2. Referenced Documents
reports of acoustical tests of assemblies that have met the
2.1 ASTM Standards:
required acoustical values.
C 11 Terminology Relating to Gypsum and Related Build-
1.4 Unheated spaces above gypsum board ceilings shall be
2
ing Materials and Systems
properly ventilated (seeAppendix X2).
2
C 36 Specification for Gypsum Wallboard
1.5 The various application systems are located in the
C 442 Specification for Gypsum Backing Board and Core-
following sections:
2
board
I Application of Single-Ply Gypsum Board to Wood Framing 8
C 475 Specification for Joint Compound and Joint Tape for
Members
2
II Application of Two-Ply Gypsum Board to Wood Framing 9
Finishing Gypsum Board
Members
C 514 Specification for Nails for the Application of Gyp-
III Application of Gypsum Board by Adhesive Nail-On to 10
2
sum Board
Wood Framing Members
IV Semi-Solid Gypsum Board Partitions 11
C 557 Specification for Adhesives for Fastening Gypsum
V Solid Gypsum Board Partitions 12
3
Wallboard to Wood Framing
VI Application of Gypsum Board with Adhesives to Interior 13
Masonry or Concrete Walls C 630/C 630M Specification for Water-Resistant Gypsum
2
VII Application of Gypsum Board to Rigid Foam Insulation 14
Backing Board
VIII Application of Gypsum Board to Steel Framing and Furring 15
C 645 Specification for Non-Load Bearing (Axial) Steel
IX Arches and Bending Radii 16
Studs, Runners (Tracks), and Rigid Furring Channels for
X Application of Gypsum Board to Receive Tile by 17
2
Adhesive Application
Screw Application of Gypsum Board
XI Exterior Application of Gypsum Wallboard and 18
C 754 Specification for Installation of Steel Framing Mem-
Exterior Gypsum Soffit Board
2
bers to Receive Screw-Attached Gypsum Board
XII Floating Interior Angles 19
XIII Control (Expansion) Joints 20
C 931/C 931M Specification for Exterior Gypsum Soffit
XIV Foil-Backed Gypsum Board 21
2
Board
C 954 Specification for Steel Drill Screws for the Applica-
The values stated in inch-pound units are to be regarded as
tion of Gypsum Panel Products or Metal Plaster Bases to
the standard. The SI (metric) values given in parentheses are
Steel Studs from 0.033 in. (0.84 mm) to 0.112 in. (2.84
approximate and are provided for information purposes only.
2
mm) in Thickness
C 1002 Specification for Steel Drill Screws for the Appli-
1
2
This specification is under the jurisdiction of ASTM Committee C11 on
cation of Gypsum Panel Products or Metal Plaster Bases
Gypsum and Related Building Materials and Systems and is the direct responsibility
of Subcommittee C11.03 on Specifications for Application of Gypsum and Other
Products in Assemblies.
2
Current edition approved Dec. 10, 2000. Published May 2001. Originally Annual Book of ASTM Standards, Vol 04.01.
3
published as C 840 – 79. Last previous edition C 840 – 99a. Annual Book of ASTM Standards, Vol 15.06.
Copyright © ASTM, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959, United States.
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