Cold-Climate Wall Assemblies
If there is a thread out for this then I apologize, but I wanted to ask about “pretty good” wall assemblies in 2022.
I am a carpenter who is building a 900 square foot addition at his own home as we as helping customer make more energy focused choices while not going deep into the passive house level.
Here is what I am seeing folks talk about:
1. 2″ Zip-R sheathing with 2×6 insulated wall cavities. How does the 2′” of the foam on the inside of the sheathing cope with any condensation.
2. Exterior foam or Rockwool board with 2×4 or 2×6 interior with wall cavities insulated. This is a great option but in climate zone 6 and colder requires a fair bit of foam to keep the sheathing warm.
3. Double stud walls of varying thicknesses.
4. Flash and batt. 1″ of foam on the inside of the sheathing and then fill the wall cavities with dense pack or batts.
What are some other options that both make these days?
Any input would be great!
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