Valley – Building Envelope Option 1
Built Prefab Standard Detail.
This the Built Prefab standard building envelope detail, consisting of a traditional in-stud insulation system to R21 and a full exterior insulation roofing system to R-30 or other value as required by code.
The Standard Detail is included in the base price of your home.
Enhance your energy performance by selecting the Built Prefab Enhanced Detail and Triple Pane Windows.