Wind uplift resistance data of TPO roofing systems with new seaming concepts

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TypeTechnical Report
Series titleInternal Report, Institute for Research in Construction, National Research Council Canada; Volume 817
Physical description71 p.
SubjectWind loads
AbstractDevelopments of new field application technologies and tools in mechanically attached Single Ply Roofs (SPR) have led to new seaming concepts. Conventionally, these seams have an overlap of 5" with the fastener placed 1.5" from the edge of the under sheet, and 3.5 from the edge of the overlapping sheet. The portion of the seam beyond the fastener row is welded with hot air such that a waterproof top surface is obtained. The width of the welded portion varied between 1.5" and 1.75". This application istermed as One Side Weld (OSW). Genflex Roofing Systems approached NRC' with a concept of Double Side Weld (DSW). In the DSW, the fasteners are placed at the seam middle and hot air welding is performed simultaneously on both sides of the fastener row.
Publication date
AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedNo
NRC number13992
NPARC number20378489
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Record identifier83399da7-0d4b-4833-ab95-9648d3132066
Record created2012-07-24
Record modified2016-10-03
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