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 (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

ASTM Standards

D226 Specification for Asphalt-Saturated Organic Felt Used in Roofing and Waterproofing

D779 Test Method for Water Resistance of Paper, Paperboard, and Other Sheet Materials 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

D4869 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 Light Apparatus for UV Exposure of Nonmetallic Materials

Keywords

building felt; building paper; building wrap; housewrap; sheathing membrane; water-resistive barrier; weather-resistive barrier; Vapor barriers; Water resistive barrier (WRB) coatings; Weather-resistant barrier; Cladding; Exterior walls; Flexible barrier materials; Mechanically-fastened attachment systems;

ICS Code

ICS Number Code 91.060.10 (Walls. Partitions. Facades)

Citing ASTM Standards

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