I am not a fan of either. In the walls yes as they are insulation products which is the re primary use.
Hi Elliot,
I am not a fan of fiberglass outside of corners either. And, of course, foam has not had a good reputation either.
But a few years back I heard a demo from the guy from Zanden, who had plastered the whole front wall with his foam, and it didn’t deaden the room at all. Instead, to my surprise, it made everything better.
Anyways, what do you recommend?