| Download | - View accepted manuscript: Impact of air intrusion on the wind uplift performance of fully bonded roofing assemblies (PDF, 1.9 MiB)
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| DOI | Resolve DOI: https://doi.org/10.1016/j.conbuildmat.2008.04.010 |
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| Author | Search for: Baskaran, B. A.1; Search for: Molleti, S.1; Search for: Sexton, M. |
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| Affiliation | - National Research Council of Canada. NRC Institute for Research in Construction
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| Format | Text, Article |
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| Subject | wind, roof, air intrusion, uplift, fastener, load, dynamic test failure mode, adhesive, staggered arrangement; Roofs |
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| Abstract | Wind performance investigation is critical in the design of durable roofing assemblies. In North America, mainly two types of low slope roofs, conventional and inverted, are in practice depending on the placement of the membrane in the assembly. As part of the conventional low-sloped roofs, in a Fully Bonded Assembly (FBA) the insulation is mechanically attached and waterproof membrane is bonded to the insulation using adhesives. Recent field investigations of roof failures after major hurricanes indicated that FBA are susceptible to high wind events. To understand the response of the FBA under dynamic environment, an extensive experimental study has been carried out by the SIGDERS - Special Interest Group for Dynamic Evaluation of Roofing Systems, at the National Research Council. The present study focuses on the impact of air intrusion on wind uplift performance of these assemblies. Airflow control is usually achieved by including a barrier/retarder in the roofing assembly. Assembly with barrier improved the wind uplift rating by two fold when compared to an assembly without barrier. Use of staggered insulation arrangement can provide similar air retarding effect as a barrier and can therefore sustain similar wind uplift pressures compared to an assembly with barrier. |
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| Publication date | 2009-02-01 |
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| In | |
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| Language | English |
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| Peer reviewed | Yes |
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| NRC number | NRCC 49721
NRC-IRC-18748 |
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| NPARC number | 20377727 |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | 2aff1174-aef0-4526-8481-5e657b548cac |
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| Record created | 2012-07-24 |
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| Record modified | 2020-04-16 |
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