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outside insulation

1K views 3 replies 4 participants last post by  Gary in WA 
#1 ·
We have enclosed our deck into a glassed in porch but the underside of the floor is exposed to the weather. What do we insulate with?
 
#2 ·
Probably the easiest way would be to have it sprayed with closed cell foam and then paint it with a UV protector (assuming light can get to it). If you use fiberglass you will just be making a great nest for critters unless you put plywood or some other material over it.
 
#4 ·
Welcome to the forum! Is the deck designed for the concentrated glass load? What R-value is called out on the deck/living space conversion plans?

Gary
 
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