Transformations---21 Laurel Street, Northampton, MA
Walls and Roof
Super-insulation of the building with 12" think walls.
| Subslab assembly |
2" of rigid under the basement slab. |
|---|---|
| Subslab R-value | 10.0 |
| Slab edge assembly |
2" of rigid. |
| Slab edge R-value | 10.0 |
| Foundation wall assembly |
3" of high density foam. |
| Foundation wall R-value | 17.8 |
| Above grade wall assembly |
12" of double studded wall mostly filled with medium density foam. |
| Above grade wall R-value | 42.9 |
| Flat attic assembly |
18" of blown cellulose. |
| Flat attic R-value | 62.9 |
Windows and Doors
| Average window U-factor | 0.21 |
|---|---|
| Solar Heat Gain Coefficient | 0.20 |
Mechanical Systems
| Space cooling - Manufacturer & Model | 2 Mitsubishi MSZ-FE12NA heads and 2 MUZ-FE12NA condensers |
|---|---|
| Space heating - Manufacturer & Model | 2 Mitsubishi MSZ-FE12NA heads and 2 MUZ-FE12NA condensers |
| Domestic hot water - Manufacturer & Model | AO Smith heat pump hot water heater |
| Domestic hot water - capacity | 50 gal |
| Ventilation - Manufacturer & Model | Panasonic Whisper Green bathroom ventilation fan, 30-70 CFM |
| Lighting Manufacturer and Model | |
| Lighting Efficiency |
Envelope
| Air Changes per hour, ACH50 | 1.35 ACH50 |
|---|---|
| Air Changes per hour, CFM50 | 459.00 |