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Air intrusion vs. air leakage - the dilemma for low sloped mechanically attached membrane roofs

From National Research Council Canada

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Affiliation
  1. National Research Council of Canada. NRC Institute for Research in Construction
FormatText, Article
ConferenceCanadian Symposium on Roofing Technology: 31 March 2009, Toronto, ON., Canada
Subjectair intrusion; air leakage; roofs; membrane; mechanically attached; deflection; pressure; insulation; Roofs
Abstract
Majority of low-sloped roofs are constructed as conventional membrane roofing assemblies (membrane above insulation). Currently, four types of conventional assemblies are typically in use: 1. Mechanically attached assembly, 2. Loose-laid ballasted assembly, 3. Fully- bonded assembly (insulation fastened and membrane adhered), and 4. Adhesive applied assembly (all components fully adhered). Approximately one fourth of North American low slope/commercial buildings are roofed with mechanically attached assemblies (NRCA 2004) and their popularity continues to grow. The present paper differentiates the air intrusion and air leakage performance of the mechanically attached assembly.
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  • Proceedings of the Canadian Symposium on Roofing Technology: 31 March 2009, Toronto (1 April 2009): 1–9.
LanguageEnglish
Peer reviewedYes
NRC numberNRCC 51240
NRC-IRC-20228
NPARC number20374554
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Record identifiera481d534-4e33-4510-9c6a-9f4c505e137c
Record created2012-07-23
Record modified2020-08-11
Date modified: