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Modern Issaquah Neighborhood, WA
Residential | Redmond Washington | SIPs Platinum Home
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
TC Legend Redmond Platinum
End Use: Residential Single-Family Home
Why SIPs?: TC Legend Homes was selected as the builder for this project to incorporate their signature "Positive Ready Home" System Design. TCL coordinated all aspects of the project from design through construction and has developed consistent high-performance home systems that rely on the energy-efficient components that SIPs offer. Energy efficiency is critical as the home needed to generate enough energy to not only operate but to power/operate future electric cars.
Benefits of SIPs: Did SIPs help save time, labor, construction costs, or energy? Absolutely to all! Install time is days, not weeks which equates to a reduction in framing and other trade labor. The use of Premier SIPs lent to the design of this home, for open spaces, cathedral and vaulted ceilings (without the need for truss systems), and natural wood finishes including reclaimed exposed timber beams!
Innovative Design Elements: The entire project was engineered to be high-performance in a region of Washington State just in Redmond, WA (home to Microsoft and Nintendo). This climate has hot summers and cold winters and the seasonal temperature swing required careful planning to achieve such high performance results.
Certifications:
- 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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High-performance buildings start with better systems.
Premier SIPS deliver a building envelope that outperforms traditional framing in efficiency, strength, and long-term durability. If your project demands higher performance and greater predictability, let’s talk.
