Recent Q&A

• Perm ratings

  I have exterior foam sheathing rated at 1.25 perms, house wrap at 33 perms over OSB sheathing. Is my total perm rating 1.25 to match the foam or some number…

• ERV

  I’m am building a 2420 sq. Ft. House in zone 5. 9’ ceilings with full basement that also have 9’ ceilings. I’m planning on using and ERV with a recirculating…

• Continuous insulation

  I am building a new home with a full basement. I have 2” GPS insulation installed from top of footer to top of the first floor wall without a gap…

• Rim joist insulation

  Im building in zone 5. My Bond area consists of a mud sill, OSB rim joist and TGI floor joists covered with Henry Blueskin (33 perms) and 2”Halo Exterra (Sales…

• Is there any suitable way to install/support stone veneer over 2” continuous exterior foam insulation? The GPS foam I’m planning on using is 25PSI and the wall is 2 by 6 on 24” centers with OSB Sheathing. The stone I have picked out is 11 lbs per square foot.

  Stone veneer over 2” GPS foam board installation.

• Wall design

  Hello, I am building a house in zone 5 and need some advice. I am using 2 by 4 walls with blown in cellulose, 7/16 OSB sheathing, Henry Blueskin VP…