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Abstract
Many have expressed concern that UL 997, the standard test for wind performance of shingles (run at 97 km/h) is not adequate considering the oces have design wind speeds from 145 km/h t0 240 km/h. The science behind the wind resistance of shingles and the route to new test standards are the subjects of this article.
Many have expressed concern that UL 997, the standard test for wind performance of shingles (run at 97 km/h) is not adequate considering the oces have design wind speeds from 145 km/h t0 240 km/h. The science behind the wind resistance of shingles and the route to new test standards are the subjects of this article.
Date
10/2000
10/2000
Author(s)
David Roodvoets
David Roodvoets
Page(s)
33-38
33-38
Keyword(s)
wind resistance; seal strip; blowoff; pressure coefficient;
wind resistance; seal strip; blowoff; pressure coefficient;