123k views
3 votes
The walls in your home have 25mm of expanded polystyrene (R-value 3.96) and 25mm of rigid urethane foam (R-value 7.50). What is the R-value of your insulation?

User FAX
by
4.0k points

1 Answer

2 votes

Answer:

3.6 per inch

EPS insulation features an average r-value of 3.6 per inch.

In addition to providing energy efficiency, EPS without film facers has a perm rating of up to 5.0.

Step-by-step explanation:

hope this helps

User Cpx
by
5.3k points