Purpose
Insulated corners reduce thermal bridging by allowing more space for insulation.
Criteria
Insulate the intersecting corner of two exterior walls to ≥R-6. EarthCraft will accept two-stud ("California corner") and two-stud corners with an offset stud to meet the intent of this criteria.
Clarifications
- Load-bearing corners in multi-story buildings or where porches/porch roofs are designed may request a waiver for this requirement
- The corner must be fully insulated to achieve the intent of this criteria; therefore, corners with more than three studs are not permitted.
Confirmation
The EarthCraft Technical Advisor will visually confirm compliance of criteria at mid-construction inspection.
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