White Claw Farm Net Zero Deep Energy Retrofit
Walls and Roof
| Subslab assembly |
No added insulation as yet - 2" planned |
|---|---|
| Foundation wall assembly |
The basement walls were insulated with three inches of polyiso foam. |
| Foundation wall R-value | 18.0 |
| Above grade wall assembly |
Walls are 8-1/2 inches, filled with water-blown spray foam, three inches of closed cell, then open cell. |
| Above grade wall R-value | 32.0 |
| Roof Assembly |
The roof is 12-1/4 inches, filled with water-blown spray foam, three inches of closed cell, then open cell. |
| Roof R-value | 44.0 |
Windows and Doors
Window Assembly:
Windows are Alpens with foam in the hollow fiberglass pultrusion. Half the glazing faces south. Casements/awnings have triple, SHGC 0.59 argon-filled glazing with two Cardinal 180 low-e coatings – the NFRC U value is 0.18. South-facing fixed windows have a low- iron outer pane to bump the SHGC to 0.62; U value is 0.16. The skylight is a Wasco with similar triple glazing.
Door Assembly:
Doors are foam-filled fiberglass with double low-e argon-filled glazing which will be replaced with high R value glazing.
| Average window U-factor | 0.18 |
|---|---|
| Solar Heat Gain Coefficient | 0.59 |
Mechanical Systems
| Space cooling - Manufacturer & Model | Fujitsu heat pump |
|---|---|
| Space heating - Manufacturer & Model | Fujitsu heat pump AOU9RLFC / ARU9RLF ducted single zone heat pump |
| Domestic hot water - Manufacturer & Model | Stiebel Eltron HPWH |
| Domestic hot water - capacity | 80 gal |
| Ventilation - Manufacturer & Model | Zehnder ComfoAir 200 |
| Lighting Manufacturer and Model | LED Green Creative |
| Lighting Efficiency | |
| Mechanical Equipment Installation Details and Comments |
Duct Blaster test 27 CFM25 |