Hanson House
Walls and Roof
Subslab assembly
Subslab 4” extruded polystyrene
Subslab R-value
20.0
Slab edge assembly
Slab edge 2” of foam
Foundation wall assembly
House is on a slab, no basement
Above grade wall assembly
Above-grade wall 2x4 double wall (9.25”cavity) dense pack cellulose
Above grade wall R-value
34.0
Flat attic assembly
Flat attic 2x10 and 2x8 (16.5” cavity) dense pack cellulose
Flat attic R-value
63.0
Cathedral ceiling assembly
Cathedral ceiling (including sloped attic ceiling) 2x12 with horizontal strapping (12.75” cavity) dense pack cellulose
Cathedral ceiling R-value
43.0
Windows and Doors
Window Assembly:
North-facing: Marvin Windows, 1 clad casement and 2 awning tripane u=.25 SHGC =.25
West-facing: 1 Marvin clad casement double pane u=.35 SHGC =.47
East-facing: 2 Marvin clad double-hung u=.30 SHGC =.30
South-facing: 4 Marvin clad double-hung u=.30 SHGC=.30
10 Marvin clad casement double pane u=.35 SHGC=.47
3 Velux VS skylights u=.50 SHGC=.29
*Only windows on walls within the conditioned space are listed. Over 75% of the surface of these windows faces south.
Door Assembly:
Doors: 4 (including attic door) ThermaTru R-7 u=.14
Average window U-factor
0.34
Solar Heat Gain Coefficient
0.37
Door U-Factor
0.14
Mechanical Systems
Space cooling - Manufacturer & Model
Space Cooling Not Needed
Space heating - Manufacturer & Model
GeoStar EWO 30H10SSA 3-ton open loop geothermal heat pump to drilled well
Domestic hot water - Manufacturer & Model
2 Heliodyne roof mounted Golbi 408 solar hot water panels
Ventilation - Manufacturer & Model
Venmar Constructo 41500 1.p air to air heat recovery unit for ventilation
Lighting Manufacturer and Model
Lighting Efficiency
21 hard-wired florescent fixtures, all other lamps and fixtures have compact florescent bulbs
Mechanical Equipment Installation Details and Comments
Superstor Contender Solar tank (SE series, electric back-up), GFX heat-recovery coil for 2nd floor bath
Walls and Roof
| Subslab assembly |
Subslab 4” extruded polystyrene |
|---|---|
| Subslab R-value | 20.0 |
| Slab edge assembly |
Slab edge 2” of foam |
| Foundation wall assembly |
House is on a slab, no basement |
| Above grade wall assembly |
Above-grade wall 2x4 double wall (9.25”cavity) dense pack cellulose |
| Above grade wall R-value | 34.0 |
| Flat attic assembly |
Flat attic 2x10 and 2x8 (16.5” cavity) dense pack cellulose |
| Flat attic R-value | 63.0 |
| Cathedral ceiling assembly |
Cathedral ceiling (including sloped attic ceiling) 2x12 with horizontal strapping (12.75” cavity) dense pack cellulose |
| Cathedral ceiling R-value | 43.0 |
Windows and Doors
Window Assembly:
North-facing: Marvin Windows, 1 clad casement and 2 awning tripane u=.25 SHGC =.25
West-facing: 1 Marvin clad casement double pane u=.35 SHGC =.47
East-facing: 2 Marvin clad double-hung u=.30 SHGC =.30
South-facing: 4 Marvin clad double-hung u=.30 SHGC=.30
10 Marvin clad casement double pane u=.35 SHGC=.47
3 Velux VS skylights u=.50 SHGC=.29
*Only windows on walls within the conditioned space are listed. Over 75% of the surface of these windows faces south.
Door Assembly:
Doors: 4 (including attic door) ThermaTru R-7 u=.14
| Average window U-factor | 0.34 |
|---|---|
| Solar Heat Gain Coefficient | 0.37 |
| Door U-Factor | 0.14 |
Mechanical Systems
| Space cooling - Manufacturer & Model | Space Cooling Not Needed |
|---|---|
| Space heating - Manufacturer & Model | GeoStar EWO 30H10SSA 3-ton open loop geothermal heat pump to drilled well |
| Domestic hot water - Manufacturer & Model | 2 Heliodyne roof mounted Golbi 408 solar hot water panels |
| Ventilation - Manufacturer & Model | Venmar Constructo 41500 1.p air to air heat recovery unit for ventilation |
| Lighting Manufacturer and Model | |
| Lighting Efficiency | 21 hard-wired florescent fixtures, all other lamps and fixtures have compact florescent bulbs |
| Mechanical Equipment Installation Details and Comments |
Superstor Contender Solar tank (SE series, electric back-up), GFX heat-recovery coil for 2nd floor bath |