Modern Issaquah Neighborhood, WA

TC Legend Redmond Platinum
Washington
Project Type Residential | Single Family > 3000 sf
Year Completed 2018
Project Size 1344 sq ft
SIPS Used 6" GPS Walls & 10" GPS Roof
Sustainable Features Premier SIPS, VOC Free Interior Paint, Reclaimed Lumber
Environmental Certifications LEED/USGBC
Architect TC Legend Homes
Contractor TC Legend Homes
Project Overview
- Energy Star Certified New Home
- DOE Zero Energy Ready Home
- Washington Built Green - Highest 5-Star Status
- EPA Indoor AirPLUS Qualified Home
HERS Index: -23
Blower Door Test: ACH50 infiltration rate: 0.63
Energy Use: Estimated energy use annually: -12.7 MMBtu
HVAC System:
- High-efficiency mini-split/Electric Htg.: 14.2 HSPF. Clg: 33.0 SEER
- Electric baseboard or radiant, 100% EFF
- Ventilation: Balanced HRV, 84 cfm, 34 watts
- Thermostat: Programmable heating and cooling
Energy-Saving Materials / Energy-Efficient Products or Design Features:
- Triple-Pane Windows, U-Value: 0.170, SHGC: 0.330
- Solar Array
- Under Slab Insulation, R-20 under & R-20 Edge Slab
- Passive Solar Orientation
- Water heating: Electric heat pump 3.2 EF, 50 Gal
Solar Panels: Photovoltaics estimated at an annual energy consumption of -30.7 MMBTu/yr (or -$763.00)
Additional Comments:
- GPS insulation core for increased efficiency.
- Annual energy cost for all operations is $-232 and generates enough energy to power the owners' electric cars!
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