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Old 2/19/10, 5:21 AM
jevans jevans is offline
InterNACHI Member
Join Date: Aug 2005
Location: Bel Air, MD
Posts: 865
Default Re: Spray Foam Attic Insulation

To clarify: The attic floor was insulated with standard fiberglass batt insulation. The roof structure including gable ends, minus cable vents, was completely covered with the foam. Could not see any rafters as they were covered. This system reverses the traditional attic/roofing ventilation requirements. How is the sheathing going to "breathe"? We have been told thhat even a second shingle layer impacts roof expectancy, this seems to be far worse than a two layer roof. How are roof leaks going to be detected?
I did manage to take the two thermal images, as I lost the digital images.

Spray Foam Attic Insulation-feb-18-2110-001-jpg

Spray Foam Attic Insulation-feb-18-2110-002-jpg

Retired Maryland Home Inspector
Infraspection Certified Level 1 No. 7801
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