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
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 |