Hillside Residence
Net-Zero Ready House in Northern Vermont
Walls and Roof
Super-insulated envelope. Air tightness tested by fog machine and blower door.
Subslab assembly
Rigid foam
Subslab R-value
24.0
Slab edge assembly
Rigid foam separating the concrete floor slab from the concrete walls
Slab edge R-value
14.0
Foundation wall assembly
Concrete walls
Foundation wall R-value
24.0
Above grade wall assembly
2x6 studs filled with blown cellulose; Zipp system sheathing taped; two 2" layers of foam, joints offset and taped; vertical strips; siding.
Above grade wall R-value
42.0
Cathedral ceiling assembly
Scissors trusses blown full of cellulose; Zipp roof sheathing with joints taped; two 2" layers of foam, joints offset and taped; nailing surface; metal roofing.
Cathedral ceiling R-value
95.0
Roof Assembly
See above.
Roof R-value
95.0
Windows and Doors
Window Assembly:
Intus PVC windows and doors, triple-glazed
Door Assembly:
Intus PVC windows and doors, triple-glazed
Average window U-factor
0.12
Solar Heat Gain Coefficient
0.49
Visible Light Transmittance
0.71
Door U-Factor
0.20
Door Area
77 sq ft
Mechanical Systems
Space cooling - Manufacturer & Model
First/Second Floor Heat Pump - Mitsubishi MSZ-FE18NA (indoor) plus MUZ-FE18NA (outdoor), Basement Heat Pump - Mitsubishi MSZ-GE09NA-8 (inside) plus MUZ-GE09NA (outside)
Space cooling - capacity
18,000 kW, 9,000 kW
Space heating - Manufacturer & Model
First/Second Floor Heat Pump - Mitsubishi MSZ-FE18NA (indoor) plus MUZ-FE18NA (outdoor), Basement Heat Pump - Mitsubishi MSZ-GE09NA-8 (inside) plus MUZ-GE09NA (outside)
Space heating - capacity
6 kW
Domestic hot water - Manufacturer & Model
Steibel Eltron Accelera 300/WHP 300
Domestic hot water - capacity
80 gal
Domestic hot water - efficiency
2 kW
Ventilation - Manufacturer & Model
Fantech VHR 1405R
Lighting Manufacturer and Model
Lighting Efficiency
Mechanical Equipment Installation Details and Comments
Blower door test and tracking with eMonitor
Envelope
Air Changes per hour, ACH50
0.40 ACH50
Air Changes per hour, CFM50
Net-Zero Ready House in Northern Vermont
Walls and Roof
Super-insulated envelope. Air tightness tested by fog machine and blower door.
| Subslab assembly |
Rigid foam |
|---|---|
| Subslab R-value | 24.0 |
| Slab edge assembly |
Rigid foam separating the concrete floor slab from the concrete walls |
| Slab edge R-value | 14.0 |
| Foundation wall assembly |
Concrete walls |
| Foundation wall R-value | 24.0 |
| Above grade wall assembly |
2x6 studs filled with blown cellulose; Zipp system sheathing taped; two 2" layers of foam, joints offset and taped; vertical strips; siding. |
| Above grade wall R-value | 42.0 |
| Cathedral ceiling assembly |
Scissors trusses blown full of cellulose; Zipp roof sheathing with joints taped; two 2" layers of foam, joints offset and taped; nailing surface; metal roofing. |
| Cathedral ceiling R-value | 95.0 |
| Roof Assembly |
See above. |
| Roof R-value | 95.0 |
Windows and Doors
Window Assembly:
Intus PVC windows and doors, triple-glazed
Door Assembly:
Intus PVC windows and doors, triple-glazed
| Average window U-factor | 0.12 |
|---|---|
| Solar Heat Gain Coefficient | 0.49 |
| Visible Light Transmittance | 0.71 |
| Door U-Factor | 0.20 |
| Door Area | 77 sq ft |
Mechanical Systems
| Space cooling - Manufacturer & Model | First/Second Floor Heat Pump - Mitsubishi MSZ-FE18NA (indoor) plus MUZ-FE18NA (outdoor), Basement Heat Pump - Mitsubishi MSZ-GE09NA-8 (inside) plus MUZ-GE09NA (outside) |
|---|---|
| Space cooling - capacity | 18,000 kW, 9,000 kW |
| Space heating - Manufacturer & Model | First/Second Floor Heat Pump - Mitsubishi MSZ-FE18NA (indoor) plus MUZ-FE18NA (outdoor), Basement Heat Pump - Mitsubishi MSZ-GE09NA-8 (inside) plus MUZ-GE09NA (outside) |
| Space heating - capacity | 6 kW |
| Domestic hot water - Manufacturer & Model | Steibel Eltron Accelera 300/WHP 300 |
| Domestic hot water - capacity | 80 gal |
| Domestic hot water - efficiency | 2 kW |
| Ventilation - Manufacturer & Model | Fantech VHR 1405R |
| Lighting Manufacturer and Model | |
| Lighting Efficiency | |
| Mechanical Equipment Installation Details and Comments |
Blower door test and tracking with eMonitor |
Envelope
| Air Changes per hour, ACH50 | 0.40 ACH50 |
|---|---|
| Air Changes per hour, CFM50 |