DOE Tour of Zero: Port Hadlock by Clifton View Homes
Photos
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Clifton View Homes built this 1,784-square-foot zero energy home in Port Hadlock, Washington, to the performance criteria of the U.S. Department of Energy Zero Energy Ready Home (ZERH) program.
Photo courtesy of Clifton View Homes
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The ultra-efficient home has 7.56 kW of solar electric panels on the roof that help it to achieve annual energy bills of $35. The solar panels are installed on the durable, fire-resistant standing seam steel roof. The roofing is installed on a structural insulated panel (SIP) thermal blanket roof constructed with 10.25-inch thick panels (R-40).
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The high-performance wall includes a SIP thermal blanket with 6.5-inch wall panels (R-25) covered in corrugated house wrap that ensures effective drainage under the fiber cement siding.
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Ultra-efficient windows include triple-pane argon-filled glass with advanced low-emissivity coatings on three layers to reflect most of the winter sun back into the rooms from the wall of windows facing north to capture the view. South-facing clerestory, high-solar heat gain coefficient windows provide direct solar heating to these north-facing rooms.
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The SIP thermal blanket roof allows for highly insulated cathedral ceilings in nearly every room of the house.
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Ultra-efficient triple-pane windows minimize heat loss while maximizing views of the harbor from almost every room.
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The home’s high-efficiency appliances include an ENERGY STAR-rated refrigerator, dishwasher, and clothes washer.
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The same ultra-efficient air-to-water heat pump that provides hot water for the in-floor radiant heat also provides domestic hot water.
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This compact outside unit for the ultra-efficient air-to-water heat pump (COP 4.1) provides space heating and domestic hot water. The heat pump could also provide cooling, but the house is designed so that thermal mass and ventilating exhaust fans with timer controls remove most of the unwanted heat from the home during the few high-temperature days in the mild Northwest climate.
Photo courtesy of Clifton View Homes
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Two rain gardens were constructed on site to handle all of the roof drain off.