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

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ConferenceProceedings of the Canadian Symposium on Roofing Technology: 31 March 2009, Toronto
Pages19; # of pages: 9
Subjectair intrusion, air leakage, low-sloped, roofs, membrane, mechanically attached, deflection, pressure, insulation; Roofs
AbstractMajority 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.
Publication date
AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedYes
NRC number51240
NPARC number20374554
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Record identifiera481d534-4e33-4510-9c6a-9f4c505e137c
Record created2012-07-23
Record modified2016-05-09
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