DIY Home Improvement Forum banner

Bubble-Foil Insulation on Basement Walls?

3K views 7 replies 3 participants last post by  carlosc 
#1 ·
Is it kosher to use bubble-foil insulation on basement exterior walls? TIA.
 
#4 ·
If you're looking at a book/website that calls for a vapor barrier on the interior side of the basement wall insulation assembly then throw it out.

http://www.buildingscience.com/docu...=resources/high-r-value-foundation-assemblies

It's not recommended because of trapped moisture within the cavity space. Moisture comes for the exterior of a foundation and migrates towards the interior.

That "typical" installation is for above grade walls where moisture within the wall has the opportunity to dry to the exterior. Basements can't dry to the exterior.
 
#6 ·
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Top