Government of Canada
Symbol of the Government of Canada
Air Barrier Systems for Walls of Low-rise Buildings: Performance and Assessment

Date published: 1997

This publication is intended to help designers and building officials understand air barrier performance, code requirements, and testing and assessment methods. Manufacturers will also be able to use the guide to develop appropriate air barrier materials and systems.

The 1995 National Building Code (NBC) includes a number of important changes to air barrier system requirements that reflect the industry's evolving knowledge, experience, and practices. The publication reviews the 1995 National Building Code requirements for air barrier systems and explains how the new requirements and new knowledge will likely affect the design of different wall types in low-rise buildings. It also provides advice on how to extend the information to high-rise buildings. Specifically, the publication deals with air barrier systems and their performance, air leakage, and the relationship between air barrier systems and vapour barriers. The text is complemented by excellent illustrations.

39 pages
Order NRCC 40635
Ordering options: Online | PDF form
$30