SHOP PRODUCTS
Houzz Logo Print
bhebert_gw

spray in foam insulation in attic rafters

bhebert
13 years ago

I am considering having spray in foam insulation installed in our attic rafters. I have a 1950s ranch style home with a low pitched roof. Attic temps can be extreme in the summer months. I live in southeast Texas where the average summer highs can reach 95 degrees with 80-90% humidity.

I have a few questions regarding the effectiveness of this technique. When the foam is sprayed in, should it cover all ventilation effectively making the attic conditioned space? I have read that if spray in insulation is used the attic should be sealed off. I have also heard that this can damage the roof sheathing causing it to rot? The attic is currently vented with soffit vents and ridge vents.

There is also a company that installs spray in radiant barrier. This method would keep the attic ventilated but cuts back on the radiant heat coming in from the underside of the roof sheathing.

Comment (1)

Sponsored
Capri Home Renovations
Average rating: 5 out of 5 stars33 Reviews
Reputable Home Renovation Company Serving Northern Virginia