Standard for Air Barrier Assemblies - Specification

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Standards Development Organisation:
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Designation Number:
CAN/ULC-S742
Status:
Proceeding to development
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SDO Comment Period End Date:
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Scope:

Scope

1.1 This standard sets out criteria for specification of air barrier assemblies that may be used in design specification documents or in manufacturer’s product literature.

1.2 This standard provides the requirements and test methods for an air barrier assembly used in applications for both low-rise and high-rise buildings.

1.3 The test methods described in this standard involve measuring the air leakage rate of a representative test specimen of an air barrier assembly before and after exposure to wind pressure loading cycles and then determining an air leakage rate at a reference pressure difference (∆P), based on the measurements.

1.4 This standard sets minimum performance requirements for the air leakage rate of air barrier assemblies based on levels of air leakage rate and wind pressure loading.

1.5 The requirements for determining the air leakage rate of air barrier components and air barrier accessories were not considered in the development of this standard.

1.6 The structural design for the transfer of loads from the air barrier assemblies to the building structure was not considered in the development of this standard.

1.7 This document does not purport to address all of the health and safety aspects associated with its use. Anyone using this Standard has the responsibility to consult the appropriate authorities and to establish health and safety practices, in conjunction with any existing applicable regulatory requirements, prior to its use.

Project need:

Project Need
This revision proposal will consist of new and/or modified requirements to address Climate Change Adaptation and Resilience in the standard. The revisions proposed are intended to be invoked by corresponding requirements in the National Codes and other regulations.

Note: The information provided above was obtained by the Standards Council of Canada (SCC) and is provided as part of a centralized, transparent notification system for new standards development. The system allows SCC-accredited Standards Development Organizations (SDOs), and members of the public, to be informed of new work in Canadian standards development, and allows SCC-accredited SDOs to identify and resolve potential duplication of standards and effort.

Individual SDOs are responsible for the content and accuracy of the information presented here. The text is presented in the language in which it was provided to SCC.