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Should the attic be vented or unvented in a new home with spray foam?

by LiveModern Webmaster last modified Jan 04, 2012 02:04 AM
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by last modified Nov 21, 2011

We're building a new home in Macon, GA ourselves (completly ouselves) 2700-2800 sq ft with a metal roof and osb borad underneath it, and i going to insulate the exterior walls with closed cell spray foam. i was wondering if i should do the same in the attic and would it be worth the money to use closed cell in the attic and roof line vs open cell.  Should i use closed/open cell and do i spray the entire roof/attic?




 

 

We're building a new home in Macon, GA ourselves (completly ouselves) 2700-2800 sq ft with a metal roof and osb borad underneath it, and i going to insulate the exterior walls with closed cell spray foam. i was wondering if i should do the same in the attic and would it be worth the money to use closed cell in the attic and roof line vs open cell.  Should i use closed/open cell and do i spray the entire roof/attic?

Jevon,

I think you'll find two distinct camps on the closed/open cell debate. I suspect you will be happy with either decision.

Do not ventilate the roof. Uncontrolled ventilation is to be...



 

 

 
 
 
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