Thoughts on this Wall Assembly
Due to cost considerations, we will be limited in how much exterior insulation we are able to add to our home.
Current wall construction looks like this: 2×4 –> 3/4″ planks –> tar paper –> cedar shingles.
The interior is down to the studs.
I am curious if anyone has concerns about a wall construction along these lines:
3/4″ drywall –> 1″ EPS foam continuous –> 2×4 with 3.5″ Rockwool Mineral wool batts –> 3/4″ planks –> 1″ EPS foam continuous –> blueskin house wrap –> cedar shingles
1. Is it silly to have the two layers of continuous foam? I have the room to add it on the interior so I figured why not, and the exterior I understand it is best practice to reduce condensation on the planks.
2. Is blueskin a good choice? If I go that route I need to ensure the house can dry to the interior, correct?
Climate zone: 5A
GBA Detail Library
A collection of one thousand construction details organized by climate and house part