Modern Issaquah Neighborhood, WA
TC Legend North Bend Platinum
Washington
Project Type Residential | Single Family > 3000 sf
Year Completed 2018
Project Size 2026 sq ft
SIPS Used 6" GPS Wall & 10" GPS Roof
Sustainable Features Premier SIPS, VOC Free Interior Paint
Environmental Certifications Net Zero/Zero Energy Ready
Architect TC Legend Homes
Contractor TC Legend Homes
Project Overview
- Energy Star Certified New Home
- Washington Built Green - Highest 5-Star Status
- EPA Indoor AirPLUS Qualified Home
- DOE Net Zero Energy Ready Home
HERS: 0
Blower Door Test: ACH50 infiltration rate: 0.88
Energy Use: Estimated energy use annually: 0.3 MMBtu
HVAC System:
- High-efficiency mini-split/Electric Htg.: 9.3 HSPF. Clg: 18.0 SEER
- Ventilation: Balanced HRV, 120 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
- Exposed Floor R-30 insulation
- Passive Solar Orientation
- Water heating: Electric heat pump 3.2 EF, 65 Gal
Solar Panels: Photovoltaics estimated at an annual energy consumption of -24.8 MMBtu/yr (or -$617.00)
Other Comments:
- GPS insulation core for increased efficiency.
- Annual energy cost for all operations is $92
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