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How best to insulate a 30'x45' corrugated aluminum roof -- closed cell spray foam vs vinyl wrapped fiberglass vs ?

by LiveModern Webmaster last modified Nov 20, 2012 01:00 AM
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by last modified Nov 19, 2012

Roof is over 2x4 purlins on edge over 2x12 rafters on 7' centers. Though 66 yrs old, the bldg is structurally sound with no corrosion and is used as a woodshop in central kentucky




 

 

Roof is over 2x4 purlins on edge over 2x12 rafters on 7' centers. Though 66 yrs old, the bldg is structurally sound with no corrosion and is used as a woodshop in central kentucky

As usual, the answer is “it depends”.

The first question to ask is whether you want to do-it-yourself.

  • If yes, then you are probably stuck with vinyl backed fiberglass or custom-cut rigid...



 

 

 
 
 

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