Stacking foil face Polyiso

Old 07-10-19, 09:39 AM
Thread Starter
Join Date: Jun 2001
Location: USA
Posts: 308
Upvotes: 0
Received 1 Upvote on 1 Post
Stacking foil face Polyiso

I'd like to use Polyiso foam board insulation for my garage ceiling. Its foil faced so I'm curious if I can stack (2) 3" thick sheets. Its ~ R6/inch so I can have ~ R36 in my ceiling. I just don't know if stacking 2 sheets would be acceptable. TIA

Thread Tools
Search this Thread
Ask a Question
Question Title:
Your question will be posted in: