ASTM C841-03(2018)

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 sound tests of assemblies that have met the requirements of Test Method E492.  
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.

General Information

• Status: Historical
• Publication Date: 30-Sep-2018
• 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

Standards Content (Sample)

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: C841 − 03 (Reapproved 2018)
Standard Specification for
1
Installation of Interior Lathing and Furring
This standard is issued under the fixed designation C841; 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 U.S. Department of Defense.
1. Scope C11 Terminology Relating to Gypsum and Related Building
Materials and Systems
1.1 This specification covers the minimum requirements for,
C37/C37M Specification for Gypsum Lath (Withdrawn
and the methods of application of, interior lathing and furring
3
2004)
to receive gypsum plaster applied in accordance with Specifi-
C514 Specification for Nails for the Application of Gypsum
cation C842. Other materials are not prohibited from being
Board
used provided that their physical characteristics and durability
C754 Specification for Installation of Steel Framing Mem-
under conditions of usage are at least equal in performance to
bers to Receive Screw-Attached Gypsum Panel Products
those described.
C842 Specification for Application of Interior Gypsum Plas-
1.2 The values stated in inch-pound units are to be regarded
ter
as standard. The values given in parentheses are mathematical
C847 Specification for Metal Lath
conversions to SI units that are provided for information only
C933 Specification for Welded Wire Lath
and are not considered standard.
C954 Specification for Steel Drill Screws for the Application
1.3 Details of construction for a specific assembly to 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
achieve the required fire resistance shall be obtained from
reports of fire-resistance tests, engineering evaluations, or Thickness
C1002 Specification for Steel Self-Piercing Tapping Screws
listings from recognized fire testing laboratories.
for Application of Gypsum Panel Products or Metal
1.4 Where a specific degree of sound control is required for
Plaster Bases to Wood Studs or Steel Studs
plastered assemblies and constructions, details of construction
C1007 Specification for Installation of Load Bearing (Trans-
shall be obtained from reports of sound tests of assemblies that
verse and Axial) Steel Studs and Related Accessories
have met the requirements of Test Method E492.
C1032 Specification for Woven Wire Plaster Base
1.5 This international standard was developed in accor-
D1784 Specification for Rigid Poly(Vinyl Chloride) (PVC)
dance with internationally recognized principles on standard-
Compounds and Chlorinated Poly(Vinyl Chloride)
ization established in the Decision on Principles for the
(CPVC) Compounds
Development of International Standards, Guides and Recom-
D3678 Specification for Rigid Poly(Vinyl Chloride) (PVC)
mendations issued by the World Trade Organization Technical
Interior-Profile Extrusions
Barriers to Trade (TBT) Committee.
E492 Test Method for Laboratory Measurement of Impact
Sound Transmission Through Floor-Ceiling Assemblies
2. Referenced Documents
Using the Tapping Machine
2
2.1 ASTM Standards:
2.2 National Association of Architectural Metal Manufac-
A641/A641M Specification for Zinc–Coated (Galvanized)
turers Standard
Carbon Steel Wire
HMMA 840 Installation and Storage of Hollow Metal Doors
4
and Frames
1
This specification is under the jurisdiction of ASTM Committee C11 on
3. Terminology
Gypsum and Related Building Materials and Systems and is the direct responsibility
of Subcommittee C11.03 on Specifications for the Application of Gypsum and Other
3.1 Definitions—For definitions relating to ceilings and
Products in Assemblies.
walls see Terminology C11.
Current edition approved Oct. 1, 2018. Published October 2018. Originally
approved in 1976. Last previous edition approved in 2013 as C841 – 03 (2013).
3
DOI: 10.1520/C0841-03R18. The last approved version of this historical standard is referenced on
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or www.astm.org.
4
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Available from National Association of Architectural Metal Manufacturers
Standards volume information, refer to the standard’s Document Summary page on (NAAMM), 800 Roosevelt Road, Bldg. C, Suite 312, Glen Ellyn, IL 60137,
the ASTM website. http://www.naamm.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

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C841 − 03 (2018)
3.2 Definitions
...

This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: C841 − 03 (Reapproved 2013) C841 − 03 (Reapproved 2018)
Standard Specification for
1
Installation of Interior Lathing and Furring
This standard is issued under the fixed designation C841; 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 U.S. Department of Defense.
1. 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 sound tests of assemblies that have met the requirements of Test Method E492.
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.
2. Referenced Documents
2
2.1 ASTM Standards:
A641/A641M Specification for Zinc–Coated (Galvanized) Carbon Steel Wire
C11 Terminology Relating to Gypsum and Related Building Materials and Systems
3
C37/C37M Specification for Gypsum Lath (Withdrawn 2004)
C514 Specification for Nails for the Application of Gypsum Board
C754 Specification for Installation of Steel Framing Members to Receive Screw-Attached Gypsum Panel Products
C842 Specification for Application of Interior Gypsum Plaster
C847 Specification for Metal Lath
C933 Specification for Welded Wire Lath
C954 Specification for Steel Drill Screws for the Application 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 Thickness
C1002 Specification for Steel Self-Piercing Tapping Screws for Application of Gypsum Panel Products or Metal Plaster Bases
to Wood Studs or Steel Studs
C1007 Specification for Installation of Load Bearing (Transverse and Axial) Steel Studs and Related Accessories
C1032 Specification for Woven Wire Plaster Base
D1784 Specification for Rigid Poly(Vinyl Chloride) (PVC) Compounds and Chlorinated Poly(Vinyl Chloride) (CPVC)
Compounds
D3678 Specification for Rigid Poly(Vinyl Chloride) (PVC) Interior-Profile Extrusions
E492 Test Method for Laboratory Measurement of Impact Sound Transmission Through Floor-Ceiling Assemblies Using the
Tapping Machine
1
This specification is under the jurisdiction of ASTM Committee C11 on Gypsum and Related Building Materials and Systems and is the direct responsibility of
Subcommittee C11.03 on Specifications for the Application of Gypsum and Other Products in Assemblies.
Current edition approved Oct. 1, 2013Oct. 1, 2018. Published October 2013October 2018. Originally approved in 1976. Last previous edition approved in 20082013 as
C841 – 03 (2008)(2013).ε1. DOI: 10.1520/C0841-03R13.10.1520/C0841-03R18.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3
The last approved version of this historical standard is referenced on 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

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C841 − 03 (2018)
2.2 National Association of Architectural Metal Manufacturers Standard
4
HMMA 840 Installation and S
...