EcoRenovator - View Single Post - Blown insulation over batts w/foil barrier?

Daox · 06-19-12, 12:10 PM

You should really remove the foil barrier since it will act as a vapor barrier and help trap moisture in the existing batts.

Also, I'd still recommend cellulose over blown fiberglass. The advantages are numerous but top on my list is lower cost, using a mostly recycled product, and less variance in R value. The compression issue with cellulose IMO isn't a big deal at all. Just be sure to compensate for it by blowing in an extra inch or two.

06-19-12, 12:10 PM	#2
Daox Administrator Join Date: Aug 2008 Location: Germantown, WI Posts: 5,525 Thanks: 1,162 Thanked 374 Times in 305 Posts	You should really remove the foil barrier since it will act as a vapor barrier and help trap moisture in the existing batts. Also, I'd still recommend cellulose over blown fiberglass. The advantages are numerous but top on my list is lower cost, using a mostly recycled product, and less variance in R value. The compression issue with cellulose IMO isn't a big deal at all. Just be sure to compensate for it by blowing in an extra inch or two. __________________ Current project - To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts. To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts. & To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.