Spring – Building Envelope Option 3
This the Built Prefab enhanced building envelope detail, consisting of 1/2″ drywall, 6 mill poly vapour barrier, 2×6 framing, R24 in stud roxul batt insulation and R48 in roof roxul batt insulation, building wrap air barrier, 2″ of rigid foam, 3/8″ rain screen and your choice of siding.
The advantage of this detail is enhanced thermal resistance at an approximate standard of R36 on the walls and R60 on the roof. Additionally, continuous insulation results in reduced thermal bridging.
Choose Building Envelope Option 1 for a more economical choice or Option 2 for a slightly reduced insulation detail.
Custom requirements such as energy step code, net zero or passive are custom designed for the applicable project.
RSI values available upon request.