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ASTM C844-04(2010)

(Specification)

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

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

ABSTRACT
This specification covers the minimum requirements for, and methods of, application of gypsum veneer base for gypsum veneer plasters. 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. The materials shall be classified as follows: gypsum base for veneer plasters; gypsum backing board for coreboard; special fire-retardant gypsum base; foil-backed gypsum base; gypsum veneer plaster; nails; non-load bearing steel; load bearing steel; steel framing, non-load bearing; accessories; adhesives; steel framing load bearing; and wood framing. The maximum spacing of framing members for singly gypsum base construction shall be not more than then specified values. Application of gypsum base, single-ply gypsum base, adhesive-mechanical fastener, foil-backed gypsum base, two-ply gypsum base, and application over existing surfaces shall be indicated. Solid gypsum base partitions shall include face ply, core, and runners. Direct adhesive application shall be used only on interior masonry or concrete walls above grade, or inside of exterior masonry cavity walls. Gypsum base application over steel framing and furring shall include screw application, framing space, and screw spacing. Gypsum base applied to the soffit of arches shall be carefully bent into place and shall conform to the specified values of bending radii.
SCOPE
1.1 This specification covers the minimum requirements for, and methods of, application of gypsum veneer base for gypsum veneer plasters.
1.2 Gypsum veneer base shall not be used as a base for direct adhesive application of ceramic, metal, or plastic tile in areas exposed to abnormal moisture or humidity or temperature.
1.3 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.
1.4 Where a specific degree of sound control is required for veneer plaster assemblies and constructions, details of construction shall be in accordance with official reports of tests conducted in recognized sound testing laboratories in accordance with the applicable sound tests, Test Method C423, Test Method E90, or Test Method E492.
1.5 Where this specification is more stringent (size or thickness of framing; spacing of fasteners) than the fire-rated construction, this specification shall govern; otherwise, the construction described in the fire test report shall govern.
1.6 Unheated spaces above gypsum veneer base ceilings shall be properly ventilated (see Appendix X3).
1.7 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.
1.8 The text of this standard 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 standard.

General Information

Status
Historical
Publication Date
14-May-2010
ICS
91.100.10 - Cement. Gypsum. Lime. Mortar
Technical Committee
C11 - Gypsum and Related Building Materials and Systems
Drafting Committee
C11.03 - Specifications for the Application of Gypsum and Other Products in Assemblies
Current Stage
Ref Project

Relations

Replaces
ASTM C844-04 - Standard Specification for Application of Gypsum Base to Receive Gypsum Veneer Plaster
Effective Date
15-May-2010
Referred By
ASTM C843-23 - Standard Specification for Application of Gypsum Veneer Plaster
Effective Date
15-May-2010
Referred By
ASTM C1396/C1396M-17 - Standard Specification for Gypsum Board
Effective Date
15-May-2010

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ASTM C844-04(2010) - Standard Specification for Application of Gypsum Base to Receive Gypsum Veneer PlasterASTM C844-04(2010) - Standard Specification for Application of Gypsum Base to Receive Gypsum Veneer Plaster
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ASTM C844-04(2010) - Standard Specification for Application of Gypsum Base to Receive Gypsum Veneer Plaster
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation:C844 −04(Reapproved 2010)
Standard Specification for
Application of Gypsum Base to Receive
1
Gypsum Veneer Plaster
This standard is issued under the fixed designation C844; 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 (´) 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 2. Referenced Documents
2
1.1 Thisspecificationcoverstheminimumrequirementsfor, 2.1 ASTM Standards:
andmethodsof,applicationofgypsumveneerbaseforgypsum C11 Terminology Relating to Gypsum and Related Building
veneer plasters. Materials and Systems
C423 Test Method for SoundAbsorption and SoundAbsorp-
1.2 Gypsum veneer base shall not be used as a base for
tion Coefficients by the Reverberation Room Method
direct adhesive application of ceramic, metal, or plastic tile in
C514 Specification for Nails for the Application of Gypsum
areas exposed to abnormal moisture or humidity or tempera-
Board
ture.
C587 Specification for Gypsum Veneer Plaster
1.3 Details of construction for a specific assembly to
C588/C588M Specification for Gypsum Base for Veneer
3
achieve the required fire resistance shall be obtained from
Plasters (Withdrawn 2005)
reports of fire-resistance tests, engineering evaluations, or
C754 Specification for Installation of Steel Framing Mem-
listings from recognized fire testing laboratories.
bers to Receive Screw-Attached Gypsum Panel Products
C954 SpecificationforSteelDrillScrewsfortheApplication
1.4 Where a specific degree of sound control is required for
veneer plaster assemblies and constructions, details of con- of Gypsum Panel Products or Metal Plaster Bases to Steel
Studs from 0.033 in. (0.84 mm) to 0.112 in. (2.84 mm) in
struction shall be in accordance with official reports of tests
conducted in recognized sound testing laboratories in accor- Thickness
C955 Specification for Load-Bearing (Transverse andAxial)
dance with the applicable sound tests, Test Method C423, Test
Method E90, or Test Method E492. Steel Studs, Runners (Tracks), and Bracing or Bridging
for Screw Application of Gypsum Panel Products and
1.5 Where this specification is more stringent (size or
Metal Plaster Bases
thickness of framing; spacing of fasteners) than the fire-rated
C1002 Specification for Steel Self-Piercing Tapping Screws
construction, this specification shall govern; otherwise, the
for the Application of Gypsum Panel Products or Metal
construction described in the fire test report shall govern.
Plaster Bases to Wood Studs or Steel Studs
1.6 Unheated spaces above gypsum veneer base ceilings
C1007 Specification for Installation of Load Bearing (Trans-
shall be properly ventilated (see Appendix X3).
verse and Axial) Steel Studs and Related Accessories
C1047 Specification for Accessories for Gypsum Wallboard
1.7 The values stated in inch-pound units are to be regarded
and Gypsum Veneer Base
as the standard.The SI (metric) values given in parentheses are
C1546 Guide for Installation of Gypsum Products in Con-
approximate and are provided for information purposes only.
cealed Radiant Ceiling Heating Systems
1.8 The text of this standard references notes and footnotes
E90 Test Method for Laboratory Measurement of Airborne
which provide explanatory material. These notes and footnotes
Sound Transmission Loss of Building Partitions and
(excluding those in tables and figures) shall not be considered
Elements
as requirements of the standard.
E492 Test Method for Laboratory Measurement of Impact
Sound Transmission Through Floor-Ceiling Assemblies
1
This specification is under the jurisdiction of ASTM Committee C11 on
2
Gypsum and Related Building Materials and Systems and is the direct responsibility For referenced ASTM standards, visit the ASTM website, www.astm.org, or
ofSubcommitteeC11.03onSpecificationsfortheApplicationofGypsumandOther contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Products in Assemblies. Standards volume information, refer to the standard’s Document Summary page on
Current edition approved May 15, 2010. Published September 2010. Originally the ASTM website.
3
approved in 1978. Last previous edition approved in 2004 as C844–04. DOI: The last approved version of this historical standard is referenced on
10.1520/C0844-04R10. www.astm.org.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
C844−04 (2010)
Using the Tapping Machine 4.10 Steel Framing, Non-load bearing—Specification C645
fo
...

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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.

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This specification covers the minimum requirements for gypsum veneer plaster and includes application methods on systems such as electric heat cable systems but not exceeding a specified temperature. Applicable building code regulations should be followed when a specific degree of fire resistance is required. Plaster and other cementitious materials should be kept dry until these are ready to be used and should be kept off the ground, under cover, and away from damp walls and surfaces.
SCOPE
1.1 This specification covers the minimum requirements for and methods of applying gypsum veneer plaster.  
1.2 Where a specific degree of fire resistance is required for veneer plaster systems, applicable building code regulations shall be followed.  
1.2.1 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.  
1.3 Where a specific degree of sound control is required for veneer plaster assemblies and constructions, details of construction shall be obtained from reports of acoustical tests of assemblies that have met the required or specified acoustical performance.
Note 1: To ensure desirable results, coordinate this specification with Specification C844.
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SCOPE
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1.2 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.  
1.3 The information presented refers to the molded surface of the part.  
1.4 The text of this standard references footnotes, which provide explanatory material. These footnotes shall not be considered as requirements of the standard.  
1.5 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.

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ASTM
ASTM C841-23(Specification)
Standard Specification for Installation of Interior Lathing and Furring

ABSTRACT
This specification covers the minimum requirements for, and the methods of application of, interior lathing and furring to receive gypsum plaster applied. Other materials are not prohibited from being used provided that their physical characteristics and durability under conditions of usage are at least equal in performance to those described. All materials shall be kept dry, preferably by being stored inside. Where necessary to be stored outside, materials shall be stacked off the ground, supported on a level platform, and protected from the weather and surface contamination. Materials shall be neatly stacked flat with care taken to avoid damage to edges, ends, or surfaces. The materials to be used are the following: tie wire and hanger wire, gypsum lath, expanded metal lath, welded wire lath, woven wire lath, nails, screws, staples, paper, and accessories such as control joints, cornerite, channels, rod and flat hangers, clips, and striplath. In general, during installation, the following shall be required: application of gypsum lath to supports, application of gypsum lath to wood supports, application of gypsum lath to metal supports, studless solid partitions (gypsum lath and plaster), application of metal plaster bases to framing members, studless solid partitions (metal lath and plaster), suspended and furred ceilings (metal lath and gypsum lath construction), main runners, cross furring, and metal furring for walls.
SCOPE
1.1 This specification covers the minimum requirements for, and the methods of application of, interior lathing and furring to receive gypsum plaster applied in accordance with Specification C842. Other materials are not prohibited from being used provided that their physical characteristics and durability under conditions of usage are at least equal in performance to those described.  
1.2 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.  
1.3 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.  
1.4 Where a specific degree of sound control is required for plastered assemblies and constructions, details of construction shall be obtained from reports of acoustical tests of assemblies that have met the required or specified acoustical performance.  
1.5 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.  
1.6 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.

  • Technical specification
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  • Technical specification
    10 pages
    English language
    sale 15% off