Brown House Road
Walls and Roof
| Subslab assembly |
There is 3” closed cell foam insulation with R value of 20 under entire slab and along the vertical stem wall. |
|---|---|
| Subslab R-value | 20.0 |
| Slab edge R-value | 20.0 |
| Foundation wall assembly |
There is 2.5” closed cell foam insulation with R value of 15 against foundation walls behind the studs. |
| Foundation wall R-value | 15.0 |
| Above grade wall assembly |
There is 1.5” rigid foam board exterior insulation with R value of 7.5 were used plus Blown-In-Blanket System (BIBS) with R value of 20 was used in between the two by six wall studs. |
| Above grade wall R-value | 27.5 |
| Cathedral ceiling assembly |
There is 5.5” closed cell spray foam was sprayed with R value of 37 as well as foil faced fiberglass batt with R value of 13. |
| Cathedral ceiling R-value | 50.0 |
Windows and Doors
Window Assembly:
Marvin Integrity windows were chosen for durability and performance to meet ENERGY STAR Version 3.0 requirements. With a 0.28 U-Value, the continuous seal and patented window frame reduces thermal bridging and condensation. South side glazing will have a higher SHGC to allow heat gain in the winter months.
| Average window U-factor | 0.28 |
|---|---|
| Solar Heat Gain Coefficient | 0.27 |
Mechanical Systems
| Space cooling - Manufacturer & Model | Carrier Infinity condenser units |
|---|---|
| Space heating - Manufacturer & Model | Natural gas fueled air distribution: Buderus ultra efficient wall-mounted boiler with a Grundfos Alpha Circulation pump. |
| Domestic hot water - Manufacturer & Model | two on-demand tankless hot water heaters with a 0.93 Energy Factory (EF). |
| Ventilation - Manufacturer & Model | UltimateAir reoupAerator ERV |
| Lighting Manufacturer and Model | LED |
| Lighting Efficiency | |
| Mechanical Equipment Installation Details and Comments |
Heating will be provided by a natural gas Buderus ultra efficient 96% AFUE wall-mounted boiler with a Grundfos Alpha Circulating pump. This sealed combustion unit was chosen to eliminate the possibility of back drafting which will support the indoor air quality. Carrier hot water coils and Carrier air handlers will be built into this hydro-air system. For cooling, Carrier Infinity condenser units with efficiency of SEER 16.5/EER 13.5 were chosen. Domestic hot water will be supplied by two on-demand tankless hot water heaters with a 0.93 Energy Factory (EF). |
Envelope
| Air Changes per hour, ACH50 | 1.01 ACH50 |
|---|---|
| Air Changes per hour, CFM50 |