Design guidelines for the wind uplift resistance of architectural metal roofing systems

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Conference11th International Conference on Wind Engineering: 02 June 2003, Lubbock, Texas
Pages10731080; # of pages: 8
Subjectwind uplift rating, dynamic evaluation, metal roofs, air leakage, design guidelines; Wind loads
AbstractCurrently, there are no national or international guidelines for the wind uplift resistance of architectural metal roofing systems. Given the increasing use of metal as roof covering materials/systems, it has been determined that there is a need for the development of a metal roof wind resistance guideline or standard, that would be applicable to all regions of Canada. In this paper, standing seam metal roof-covering systems were investigated under dynamic wind load conditions. Air leakage of the structural deck is an important factor for wind uplift performance of the architectural metal roofing systems. It has been noted that the wind uplift resistance is increasing dramatically as the air leakage ratio i.e., the amount of leakage area compared to the total roofing deck area, is decreasing. A modeling method was also described to quantify the metal roofing system response by simulating the wind gusts over roof specimens of different leakage levels that can represent typical field assemblies. Based on the laboratory experiments, a simplified design guideline was developed for the wind uplift resistant design of roof assemblies with metal covering located in the province of British Columbia, Canada.
Publication date
AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedYes
NRC number46299
NPARC number20386403
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Record identifierc1f60e5a-a8e1-40f7-98b0-dcf553e5cae4
Record created2012-07-25
Record modified2016-05-09
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