NerdelbaumFrinkJr
Registered User
Referring to 2015 IECC C402.1.3, is there any exemption for the R-7.5ci on the below grade walls? Proposed building is on foundation walls with frost-depth footings. The Wisconsin administrative commercial code does exempt slab-on-grade S-1 occupancy buildings < 12,000 sq ft from requiring foundation insulation. Can this also apply to frost-depth footings?