NRCA - Professional Roofing
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Contributor: Mark S. Graham
Mark S. Graham
NRCA’s vice president of technical services
Featured Article
Featured
A field uplift testing update
Column
May 2026
A new edition of ASTM E907 has been published
More from the Author
TPOs face a changing landscape
Aug. 2017
Not quite measuring up
July 2017
Recommendations for better shingling
June 2017
Tech Today
May 2017
Tech Today
April 2017
Tech Today
March 2017
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