Zero Energy SIP House Whitewebs Greenbank WA

Location: Greenbank, 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: 2015


High Performance: Yes
HERS/EUI Index Score: 50
ACH50 - Blower Test Results: 0.9
CO2 lbs./sq.ft./year:

Awards/Certifications: DOE Zero Energy Ready Home

SIP home certified as Zero Energy Ready by the United States Department of Energy.

• DOE Zero Energy Ready Home Path: Performance.
• Walls: R-25: 6.5" SIP walls, draining house wrap, fiber cement plank siding.
• Roof: R-40: 10.25” SIPs, 30# felt, comp. shingles, R-40 assembly.
• Attic: Cathedral ceilings, small mechanical attic above upstairs bath in conditioned space.
• Foundation: Slab-on-grade, 4" R-20 rigid foam under slab, 2" R-10 rigid foam on inside of stem wall down to the footing, over 2" pea gravel and 6-mil poly vapor barrier.
• Windows: Triple-pane, low-e, U=0.20. 
• HERS: 50. 
• Air Sealing: 0.9 ACH 50.
• Ventilation: Continuous bath exhaust, fresh air intake with HEPA filter, timered range fan.
• HVAC: Ductless heat pump, 10.0 HSPF, 21 SEER.
• Hot Water: 94% efficient electric water heater.
• Lighting: 100% LED or CFL.
• Appliances: ENERGY STAR refrigerator, dishwasher, clothes washer, clothes dryer.
• Solar: Pre-wired for PV.
• Water Conservation: All low-flow faucets & fixtures.
• Energy Management System: “None required, this house manages itself!”
• Other Measures: Designed and wired for 10.26-kW PV and electric car charging station. SIPs will withstand an 8.0 earthquake.

DOE project link: Zero Energy SIP House Whitewebs Greenbank 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