Roofing Ventilation from CertainTeed

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>> YOUR LINK HERE: ___ http://youtube.com/watch?v=zz41uMCZxyg

CertainTeed’s director of contractor programs, Jay Butch, explains why ventilation is a key component of a roof system. • Get more information on our line of ventilation products here: http://www.certainteed.com/products/r...

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