ASTM C1063-20a

Standard Specification for Installation of Lathing and Furring to Receive Interior and Exterior Portland Cement-Based Plaster

ABSTRACT
This specification covers the installation of lathing and furring to receive interior and exterior Portland cement-based plaster. The following materials shall be used: metal plaster bases—expanded metal lath and wire laths; accessories—steel, PVC plastic, zinc alloy, and cornerite; channels—external corner reinforcement and foundation weep screed; wire; rod and strap hangers; clips; fasteners—nails and screws. Hangers and cold-rolled channel main runner shall conform to the allowable spacing and spans, respectively. The following methods are discussed: installation of hangers for suspended ceilings under wood constructions, attachment of hangers to main runners, installation of main runners, installation of cross furring, metal furring for walls, lapping of metal plaster bases, spacing of attachments for metal plaster bases, application of metal plaster bases, and application of accessories.
SCOPE
1.1 This specification covers the minimum technical requirements for the installation of lathing and furring for the application of exterior and interior portland cement-based plaster, as in Specification C926. These requirements do not by default define a unit of work or assign responsibility for contractual purposes, which is the purview of a contract or contracts made between contracting entities.  
1.2 Table of Contents:    
Scope  
1  
Referenced Documents  
2  
Terminology  
3  
Delivery and Storage of Materials  
4  
Materials  
5  
Requirements for Substrates to Receive Metal Lathing & Furring  
6  
Installation  
7  
Workmanship  
7.1  
Installation of Metal Furring for Walls  
7.2  
Installation of Metal Plaster Bases  
7.3  
Installation of Lathing Accessories  
7.4  
Keywords  
8  
Installation of Metal Furring for Suspended Ceilings  
Annex A1  
1.3 Where a fire resistance rating is required for plastered assemblies and constructions, details of construction shall be in accordance with reports of fire tests of assemblies that have met the requirements of the fire rating imposed.  
1.4 Where a specific degree of sound control is required for plastered assemblies and constructions, details of construction shall be in accordance with official reports of tests conducted in recognized testing laboratories in accordance with the applicable requirements of Test Method E90.  
1.5 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.  
1.6 The text of this specification references notes and footnotes that provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of the specification.  
1.7 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-2020
• 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:C1063 −20a
Standard Specification for
Installation of Lathing and Furring to Receive Interior and
1
Exterior Portland Cement-Based Plaster
This standard is issued under the fixed designation C1063; 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* 1.6 The text of this specification references notes and
footnotes that provide explanatory material. These notes and
1.1 This specification covers the minimum technical re-
footnotes (excluding those in tables and figures) shall not be
quirements for the installation of lathing and furring for the
considered as requirements of the specification.
application of exterior and interior portland cement-based
plaster, as in Specification C926.These requirements do not by 1.7 This international standard was developed in accor-
default define a unit of work or assign responsibility for
dance with internationally recognized principles on standard-
contractual purposes, which is the purview of a contract or ization established in the Decision on Principles for the
contracts made between contracting entities.
Development of International Standards, Guides and Recom-
mendations issued by the World Trade Organization Technical
1.2 Table of Contents:
Barriers to Trade (TBT) Committee.
Scope 1
Referenced Documents 2
Terminology 3
2. Referenced Documents
Delivery and Storage of Materials 4
2
Materials 5
2.1 ASTM Standards:
Requirements for Substrates to Receive Metal Lathing & Furring 6
C11 Terminology Relating to Gypsum and Related Building
Installation 7
Materials and Systems
Workmanship 7.1
Installation of Metal Furring for Walls 7.2
C847 Specification for Metal Lath
Installation of Metal Plaster Bases 7.3
C926 Specification for Application of Portland Cement-
Installation of Lathing Accessories 7.4
Keywords 8 Based Plaster
Installation of Metal Furring for Suspended Ceilings Annex A1
C933 Specification for Welded Wire Lath
1.3 Where a fire resistance rating is required for plastered C1032 Specification for Woven Wire Plaster Base
assembliesandconstructions,detailsofconstructionshallbein C1280 Specification for Application of Exterior Gypsum
accordance with reports of fire tests of assemblies that have Panel Products for Use as Sheathing
met the requirements of the fire rating imposed. C1861 Specification for Lathing and Furring Accessories,
and Fasteners, for Interior and Exterior Portland Cement-
1.4 Where a specific degree of sound control is required for
Based Plaster
plastered assemblies and constructions, details of construction
E90 Test Method for Laboratory Measurement of Airborne
shallbeinaccordancewithofficialreportsoftestsconductedin
Sound Transmission Loss of Building Partitions and
recognized testing laboratories in accordance with the appli-
Elements
cable requirements of Test Method E90.
3
2.2 US Department of Commerce (DOC) Standards:
1.5 The values stated in inch-pound units are to be regarded
PS 1 Voluntary Product Standard PS 1, Structural Plywood
as standard. The values given in parentheses are mathematical
PS 2 Voluntary Product Standard PS 2, Performance Stan-
conversions to SI units that are provided for information only
dard for Wood-Based Structural Use Panels
and are not considered standard.
1 2
This specification is under the jurisdiction of ASTM Committee C11 on For referenced ASTM standards, visit the ASTM website, www.astm.org, or
GypsumandRelatedBuildingMaterialsandSystemsandisthedirectresponsibility contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
ofSubcommitteeC11.03onSpecificationsfortheApplicationofGypsumandOther Standards volume information, refer to the standard’s Document Summary page on
Products in Assemblies. the ASTM website.
3
Current edition approved Oct. 1, 2020. Published November 2020. Originally Available from U.S. Government Printing Office, Superintendent of
approved in 1986. Last previous edition approved in 2020 as C1063 – 20. DOI: Documents, 732 N. Capitol St., NW, Washington, DC 20401-0001, http://
10.1520/C1063-20A. www.access.gpo.gov.
*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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C1063−20a
3. Terminology 5. Materials
3.1 Definitions: 5.1 Metallicmaterialsincludinglathing,lathingaccessories,
furring, furring accessories, and fasteners shall be selected for
3.1.1 For definitions relating to ceilings and walls, see
...

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: C1063 − 20 C1063 − 20a
Standard Specification for
Installation of Lathing and Furring to Receive Interior and
1
Exterior Portland Cement-Based Plaster
This standard is issued under the fixed designation C1063; 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 technical requirements for the installation of lathing and furring for the application of
exterior and interior portland cement-based plaster, as in Specification C926. These requirements do not by default define a unit
of work or assign responsibility for contractual purposes, which is the purview of a contract or contracts made between contracting
entities.
1.2 Table of Contents:
Scope 1
Referenced Documents 2
Terminology 3
Delivery and Storage of Materials 4
Materials 5
Requirements for Substrates to Receive Metal Lathing & Furring 6
Installation 7
Workmanship 7.1
Installation of Metal Furring for Walls 7.2
Installation of Metal Plaster Bases 7.3
Installation of Lathing Accessories 7.4
Keywords 8
Installation of Metal Furring for Suspended Ceilings Annex A1
1.3 Where a fire resistance rating is required for plastered assemblies and constructions, details of construction shall be in
accordance with reports of fire tests of assemblies that have met the requirements of the fire rating imposed.
1.4 Where a specific degree of sound control is required for plastered assemblies and constructions, details of construction shall
be in accordance with official reports of tests conducted in recognized testing laboratories in accordance with the applicable
requirements of Test Method E90.
1.5 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.
1.6 The text of this specification references notes and footnotes that provide explanatory material. These notes and footnotes
(excluding those in tables and figures) shall not be considered as requirements of the specification.
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 May 15, 2020Oct. 1, 2020. Published July 2020November 2020. Originally approved in 1986. Last previous edition approved in 20192020 as
C1063 – 19a.C1063 – 20. DOI: 10.1520/C1063-20.10.1520/C1063-20A.
*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 ----------------------
C1063 − 20a
1.7 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:
A653/A653M Specification for Steel Sheet, Zinc-Coated (Galvanized) or Zinc-Iron Alloy-Coated (Galvannealed) by the
Hot-Dip Process
C11 Terminology Relating to Gypsum and Related Building Materials and Systems
C847 Specification for Metal Lath
C926 Specification for Application of Portland Cement-Based Plaster
C933 Specification for Welded Wire Lath
C1032 Specification for Woven Wire Plaster Base
C1280 Specification for Application of Exterior Gypsum Panel Products for Use as Sheathing
C1861 Specification for Lathing and Furring Accessories, and Fasteners, for Interior and Exterior Portland Cement-Based
Plaster
E90 Test Method for Laboratory Measurement of Airborne Sound Transmission Loss of Building Partitions and Elements
3
2.2 US Department of Commerce (DOC) Standards:
PS 1 Voluntary Product Standard PS 1, Structural Plywood
PS 2 Voluntary Product Standard PS 2, Performance Standard for Wood-Based Structural Use Panels
3. Terminology
3.1 Definitions:
3.1.1 For definitions relating to ceilings and walls, see Terminology C11.
3.1.2 For definitio
...