EcoRenovator - View Single Post - Remodeling the office (new floor, ceiling & adding insulation) passive house retrofit

S-F · 08-09-11, 09:05 PM

So you found a source of recycled polysio? I personally recommend polyiso for this application which is not foil faced. The foil make a complete vapor barrier which you don't need. You want the wall to be able to dry to both the outside and inside if possible. One of the great benefits of the recycled stuff is it's faced with fiberglass and paper so it is still mildly vapor permeable. And it's worlds cheaper.

08-09-11, 09:05 PM	#17
S-F You Ain't Me Join Date: Nov 2009 Location: Northampton MA Posts: 662 Thanks: 6 Thanked 71 Times in 58 Posts	So you found a source of recycled polysio? I personally recommend polyiso for this application which is not foil faced. The foil make a complete vapor barrier which you don't need. You want the wall to be able to dry to both the outside and inside if possible. One of the great benefits of the recycled stuff is it's faced with fiberglass and paper so it is still mildly vapor permeable. And it's worlds cheaper.