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Old 09-08-2011, 01:00 PM   #1
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outside insulation

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?


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Old 09-08-2011, 02:56 PM   #2
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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.


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Old 09-09-2011, 08:31 AM   #3
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Spray foam or sealed up rigid foam.
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Old 09-10-2011, 08:33 PM   #4
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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?

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