About
Is spray foam any good?
Good for direct on metal spraying.
Expensive but high R - [1]
Advantages
- Longer life - claimed 80 years vs usual 20 years [2]
Sourcing
- $1.2 per sf per R6 (1" thick) - [3]
Polyethylene Foam
Polyethylene foam - R15 at 50 cents/sf [4]