Zero Energy Ready SIP House Coupeville WA

Location: Coupeville, WA

Project Information

Project Type: Residential, < 3,000 sq. ft.
Manufacturer: Premier Building Systems
Builder: Clifton View Homes
Design Professional: Zero Energy Plans
Year Built: 2011


High Performance: Yes
HERS/EUI Index Score: -6
ACH50 - Blower Test Results: 1.32
CO2 lbs./sq.ft./year:

Awards/Certifications: DOE Zero Energy Ready Home, ENERGY STAR Certified, EPA Indoor AirPLUS

Energy-efficient Whidbey Island home built with SIPs to allow Zero Energy Ready designation from the U.S. Department of Energy

• Path: performance
• Walls: SIP 5-5/8-inch (R-26) panels; corrugated house wrap
• Attic: 9-3/8-inch (R-41) SIPs and 11-3/8-inch (R-50) SIPs
• Foundation: slab on grade with R-20 XPS rigid insulation under slab and R-10 XPS on interior of foundation walls
• Windows: triple-pane, argon-filled, fiberglassframed, Low-e windows with U=0.18 to 0.22 and 0.26 to 0.31 SHGC (higher SHGC on south side for passive solar gains)
• Air Sealing: 1.32 ACH50
• Ventilation: four timer-controlled fans to bring in and exhaust air, HEPA MERV 19 filters
• HVAC: ground-source heat pump, provides hot water for radiant floor heating of 1st and 2nd floor plus all domestic hot water at 14.67 HSPF, COP=4.3
• Hot Water: ground-source heat pump with desuperheater
• Lighting: 10% LED; 90% CFL; 3 ENERGY STAR ceiling fans
• Appliances: ENERGY STAR dishwasher, clothes washer, refrigerator; all lowest energy use in their categories.
• Solar: solar ready with branch panel located in attic.
• Water Conservation: 100% xeriscaped with native drought-tolerant plants (no irrigation needed)
• EPA WaterSense Fixtures: all shower heads, lav faucets, toilets
• Other: thermal mass concrete floors, passive solar design
• Electric Car Charging Ctation: not installed but roughed in

DOE project link: Zero Energy Ready SIP House Coupeville WA

To explore other Zero Energy Ready Homes, visit the Department of Energy’s Tour of Zero page.


Affiliated Members

BASF Corporation

Houston, TX
Clifton View Homes

Coupeville, WA
Premier SIPS

Puyallup, WA
Zero-Energy Plans, LLC

Coupeville, WA


SIPA Website Sponsors