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Spray Foam Directly on Shingles Post New Topic | Post Reply

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Elijah Smith
Posted: May 14, 2009 10:31 AM
Spray Foam Directly on Shingles
I'm a structural engineer and am helping a client with an addition and remodel. His current roof system is post and beam with raked cedar planks and shingles with no rafters and no insulation. We want to put a new system directly on the existing by adding 2x6's every 24" o.c. directly on the shingles with the sprayfoam then being applied to the existing shingles as well. We will then sheath and shingle the roof. I just wanted to get a professionals opinion about this.


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