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Modern Issaquah Neighborhood, WA
Award winner
Residential | Semiahmoo Washington | SIPs Zero Energy
Washington
Project Type Residential | Single Family > 3000 sf
Year Completed 2019
Project Size 1861 sq ft
SIPS Used 6" GPS Walls & 10" GPS Roof
Sustainable Features Premier SIPS,
Environmental Certifications Net Zero/Zero Energy Ready
Awards 2020 BEA High Performance Winner Homes Under 3K S/FH
Architect Zero-Energy Plans
Contractor TC Legend Homes
Project Overview
TC Legend Semiahmoo Net Positive
End Use: Private Residence
Why SIPs?: "Our clients were seeking a net zero home - one that would produce at least as much energy as it would consume. SIPs were the logical choice for creating the highly insulated, air-tight envelope needed to achieve net zero in the Pacific Northwest. SIPs always make for a more efficient build, in terms of saving time on labor during construction and saving energy for the client, once the home is ready to occupy."
Certifications:
- Energy Star Certified
- US DOE Zero-Energy Ready Home
- US EPA Indoor-Air-Plus
HERS Index: -3
Blower Door Test: 0.35 ACH 50
Energy Use in Intensity in kBty/ft2: 0.374
Other:
- A Tatami room, bringing an element of the Far East into this otherwise Western-style home. This will serve as a simple gathering space or a place for meditation.
- An elevator to facilitate aging-in-place
- A simple rectangular design to minimize exposed surface area
- Orientation and window placement to optimize active and passive solar
- Slab on grade with 4” foam under-slab insulation
- Insulated concrete forms
- Triple-pane windows
- High-efficiency air-source mini-split heat pumps (5 heads) for heating/cooling
- High-efficiency heat pump hot water heater
- HERS rating of - 3 (positive energy, more than it uses)
- Air leakage blower door test rating of 0.35
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