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1.1 This specification covers minimum performances and specification criteria for an air barrier (AB) material or system for framed walls of low-rise buildings. The intended users are purchasers of the AB, specifiers of the AB and regulatory groups. The provisions contained in this specification are intended to allow the user to design the wall performance criteria and increase AB specifications to accommodate a particular climate location, function, or design of the intended building. Air barrier performance and specification minimums were selected with the service life of the building wall in mind.
1.2 This specification focuses on ABs for opaque walls. Other areas of the exterior envelope, such as roofs, floors, and interfaces between these areas are not included in this specification.
1.3 This specification does not address air leakage into the wall cavity, that is, windwashing. No standardized test has been developed that adequately identifies all of the influencing factors and measures the impact of this effect on the wall's thermal performance.
1.4 The specifications in this standard are not intended to be utilized for energy load calculations and are not based on an expected level of energy consumption.
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 following safety hazards caveat pertains only to the test method portion, Annex A1, of this specification. 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.
C755 Practice for Selection of Water Vapor Retarders for Thermal Insulation
E96/E96M Test Methods for Water Vapor Transmission of Materials
E241 Guide for Limiting Water-Induced Damage to Buildings
E283 Test Method for Determining Rate of Air Leakage Through Exterior Windows, Curtain Walls, and Doors Under Specified Pressure Differences Across the Specimen
E331 Test Method for Water Penetration of Exterior Windows, Skylights, Doors, and Curtain Walls by Uniform Static Air Pressure Difference
E631 Terminology of Building Constructions
E1424 Test Method for Determining the Rate of Air Leakage Through Exterior Windows, Curtain Walls, and Doors Under Specified Pressure and Temperature Differences Across the Specimen
ASHRAE StandardASHRAE62 Acceptable Indoor Air Quality
CSA StandardAir Barrier Systems for Walls of Low-Rise Building
ASCE StandardASCE7-88 1990, Minimum Design Loads for Buildings and Other Structure, Fig. 1, Basic Wind Speed (mph)
ICS Number Code 91.120.30 (Waterproofing)
UNSPSC Code 95120000(Permanent buildings and structures); 30140000(Insulation)
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ASTM E1677-11, Standard Specification for Air Barrier (AB) Material or System for Low-Rise Framed Building Walls, ASTM International, West Conshohocken, PA, 2011, www.astm.orgBack to Top