Standard Specification for Vapor Permeable Flexible Sheet Water-Resistive Barriers Intended for Mechanical Attachment

SCOPE
1.1 This specification is limited to vapor permeable flexible sheet materials which are intended to be mechanically attached and are generally installed behind the cladding system in exterior walls.  
1.2 This specification is limited to the evaluation of materials and does not address installed performance. Although the fastening practices (type of fastener, fastening schedule, etc.) may affect the installed function of these materials, they are not included in this specification.  
1.3 This specification does not address integration of the water-resistive barrier with other wall elements. The topic is addressed in more detail in Practice E2112 and Guide E2266.  
1.4 The values stated in either SI units or inch-pound units are to be regarded separately as standard. 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.  
1.5 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 and health practices and determine the applicability of regulatory limitations prior to use.

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ASTM E2556/E2556M-10(2016) - Standard Specification for Vapor Permeable Flexible Sheet Water-Resistive Barriers Intended for Mechanical Attachment
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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:E2556/E2556M −10 (Reapproved 2016)
Standard Specification for
Vapor Permeable Flexible Sheet Water-Resistive Barriers
1
Intended for Mechanical Attachment
ThisstandardisissuedunderthefixeddesignationE2556/E2556M;thenumberimmediatelyfollowingthedesignationindicatestheyear
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.
1. Scope the Dry Indicator Method
D828 Test Method for Tensile Properties of Paper and
1.1 This specification is limited to vapor permeable flexible
PaperboardUsingConstant-Rate-of-ElongationApparatus
sheet materials which are intended to be mechanically attached
D882 Test Method for Tensile Properties of Thin Plastic
and are generally installed behind the cladding system in
Sheeting
exterior walls.
D4869/D4869M Specification for Asphalt-Saturated Or-
1.2 This specification is limited to the evaluation of mate-
ganic Felt Underlayment Used in Steep Slope Roofing
rials and does not address installed performance.Although the
D5034 TestMethodforBreakingStrengthandElongationof
fastening practices (type of fastener, fastening schedule, etc.)
Textile Fabrics (Grab Test)
mayaffecttheinstalledfunctionofthesematerials,theyarenot
E96/E96M Test Methods for Water Vapor Transmission of
included in this specification.
Materials
E631 Terminology of Building Constructions
1.3 This specification does not address integration of the
water-resistive barrier with other wall elements. The topic is E1677 Specification forAir Barrier (AB) Material or System
for Low-Rise Framed Building Walls
addressed in more detail in Practice E2112 and Guide E2266.
E2112 Practice for Installation of Exterior Windows, Doors
1.4 The values stated in either SI units or inch-pound units
and Skylights
are to be regarded separately as standard. The values stated in
E2128 Guide for Evaluating Water Leakage of Building
each system may not be exact equivalents; therefore, each
Walls
system shall be used independently of the other. Combining
E2136 Guide for Specifying and Evaluating Performance of
values from the two systems may result in non-conformance
Single Family Attached and Detached Dwellings—
with the standard.
Durability
1.5 This standard does not purport to address all of the
E2266 Guide for Design and Construction of Low-Rise
safety concerns, if any, associated with its use. It is the
Frame Building Wall Systems to Resist Water Intrusion
responsibility of the user of this standard to establish appro-
G154 Practice for Operating Fluorescent Ultraviolet (UV)
priate safety and health practices and determine the applica-
Lamp Apparatus for Exposure of Nonmetallic Materials
bility of regulatory limitations prior to use.
2.2 Other Standards:
2. Referenced Documents AATCC Test Method 127 Water Resistance: Hydrostatic
3
Pressure Test
2
2.1 ASTM Standards:
CGSB CAN2-51.32.M77 Sheathing Membrane, Breather
D226/D226M Specification for Asphalt-Saturated Organic
4
Type
Felt Used in Roofing and Waterproofing
Federal Specification UU-B-790a Federal Specification
D779 Test Method for Determining the Water Vapor Resis-
Building Paper, Vegetable Fiber (Kraft, Waterproofed,
tance of Sheet Materials in Contact with Liquid Water by
5
Water Repellent and Fire Resistant)
1
This specification is under the jurisdiction of ASTM Committee E06 on
Performance of Buildings and is the direct responsibility of Subcommittee E06.55
3
on Performance of Building Enclosures. Available from American Association of Textile Chemists and Colorists
Current edition approved Dec. 1, 2016. Published December 2016. Originally (AATCC), P.O. Box 12215, Research Triangle Park, NC 27709-2215, http://
approved in 2009. Last previous edition approved in 2010 as E2556/E2556M -10. www.aatcc.org.
4
DOI: 10.1520/E2556_E2556M-10R16. Available from Canadian General Standards Board (CGSB), 11 Laurier St.,
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or Phase III, Place du Portage, Gatineau, Quebec K1A0S5, Canada, http://www.tpsgc-
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM pwgsc.gc.ca/ongc-cgsb.
5
Standards volume information, refer to the standard’s Document Summary page on Available from DLA Document Services, Building 4/D, 700 Robbins Ave.,
the ASTM website. Philadelphia, PA 19111-5094, http://quicksearch.dla.mil.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
E2556/E2556M−10 (2016)
TABLE 1 Requirements for Water Resistive Barriers
Minimum Performance Requirements
Test Requirement Specimen Type Test Method
Type I Type II
Dry tensile strength (1) as manufactured T
...

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: E2556/E2556M − 10 E2556/E2556M − 10 (Reapproved 2016)
Standard Specification for
Vapor Permeable Flexible Sheet Water-Resistive Barriers
1
Intended for Mechanical Attachment
This standard is issued under the fixed designation E2556/E2556M; 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.
1. Scope
1.1 This specification is limited to vapor permeable flexible sheet materials which are intended to be mechanically attached and
are generally installed behind the cladding system in exterior walls.
1.2 This specification is limited to the evaluation of materials and does not address installed performance. Although the
fastening practices (type of fastener, fastening schedule, etc.) may affect the installed function of these materials, they are not
included in this specification.
1.3 This specification does not address integration of the water-resistive barrier with other wall elements. The topic is addressed
in more detail in Practice E2112 and Guide E2266.
1.4 The values stated in either SI units or inch-pound units are to be regarded separately as standard. 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.
1.5 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 and health practices and determine the applicability of regulatory
limitations prior to use.
2. Referenced Documents
2
2.1 ASTM Standards:
D226D226/D226M Specification for Asphalt-Saturated Organic Felt Used in Roofing and Waterproofing
D779 Test Method for Determining the Water Vapor Resistance of Sheet Materials in Contact with Liquid Water by the Dry
Indicator Method
D828 Test Method for Tensile Properties of Paper and Paperboard Using Constant-Rate-of-Elongation Apparatus
D882 Test Method for Tensile Properties of Thin Plastic Sheeting
D4869D4869/D4869M Specification for Asphalt-Saturated Organic Felt Underlayment Used in Steep Slope Roofing
D5034 Test Method for Breaking Strength and Elongation of Textile Fabrics (Grab Test)
E96/E96M Test Methods for Water Vapor Transmission of Materials
E631 Terminology of Building Constructions
E1677 Specification for Air Barrier (AB) Material or System for Low-Rise Framed Building Walls
E2112 Practice for Installation of Exterior Windows, Doors and Skylights
E2128 Guide for Evaluating Water Leakage of Building Walls
E2136 Guide for Specifying and Evaluating Performance of Single Family Attached and Detached Dwellings—Durability
E2266 Guide for Design and Construction of Low-Rise Frame Building Wall Systems to Resist Water Intrusion
G154 Practice for Operating Fluorescent Ultraviolet (UV) Lamp Apparatus for Exposure of Nonmetallic Materials
1
This specification is under the jurisdiction of ASTM Committee E06 on Performance of Buildings and is the direct responsibility of Subcommittee E06.55 on Exterior
Building Wall SystemsPerformance of Building Enclosures.
Current edition approved Oct. 15, 2010Dec. 1, 2016. Published November 2010December 2016. Originally approved in 2009. Last previous edition approved in 20092010
as E2556/E2556M - 09.E2556/E2556M -10. DOI: 10.1520/E2556_E2556M-10. 10.1520/E2556_E2556M-10R16.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
E2556/E2556M − 10 (2016)
2.2 Other Standards:
3
AATCC Test Method 127 Water Resistance: Hydrostatic Pressure Test
4
CGSB CAN2-51.32.M77 Sheathing Membrane, Breather Type
Federal Specification UU-B-790a Federal Specification Building Paper, Vegetable Fiber (Kraft, Waterproofed, Water Repellent
5
and Fire Resistant)
3
Available from American Association of Textile Chemists and Colorists (AATCC), P.O. Box 12215, Research Triangle Park, NC 27709,27709-2215, http://
www.aatcc.org.
4
Available from Canadian General Standard
...

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