DOE Tour of Zero: The Chandler at Little Cottonwood Canyon by Garbett Construction
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Garbett Homes built this 5,226-square-foot house in Little Cottonwood Canyon, Utah, to the performance criteria of the U.S. Department of Energy Zero Energy Ready Home (ZERH) program.
The high-performance home is estimated to achieve energy cost savings of about $700 per year compared to a similar-sized home built to code.
The roof was structurally designed and prewired to support solar photovoltaic and solar thermal water-heating panels with plenty of south-facing roof area.
A steeply pitched roof, careful flashing, and covered entries are part of a snow-resistant design, while inside the attic, raised-heel trusses and spray foam provide critical air-sealing and insulation at the roof eaves to minimize the snow melt that can lead to ice dam formation.
The carefully air-sealed home has low- and no-VOC-emitting structural wood products, primer, paint, cabinets, and flooring that meet the requirements of the U.S. Environmental Protection Agency’s Indoor airPLUS certification.
Efficient double-pane vinyl-framed windows provide natural daylighting and are an important part of a high-performance thermal enclosure.
The home’s comfort system consists of a 96.5 AFUE natural gas, multistage furnace with a high-efficiency electrically commutated (ECM) motor.
The home’ interior and exterior lighting is 100% advanced technology light emitting diode (LED) based lighting.
A centrally located tankless hot water heater, demand-activated hot water recirculation system, and water-saving fixtures reduce water waste and conserve energy.
Garbett Homes used spray foam insulation in all of the rim joists, attic heels, over top plates, and as needed in other crucial areas as part of their plan for comprehensive draft protection.
Before installing drywall, Garbett contractors install a sprayer-applied elastomeric sealant along framing and top plates. The flexible, VOC-free sealant forms an airtight seal between the framing and dry wall to help provide comprehensive draft protection.
The cantilevered ceiling over the entry area is air-sealed and insulated with spray foam to help keep the rooms above warm and draft-free.
“… homeowners excited to save half if not more in their energy bills.”
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“Garbett is known in the Salt Lake Valley as a major player in energy efficiency for homes. One of the ways we measure this result is by customer satisfaction surveys and by the energy billing data provided by homeowners excited to save half if not more in their energy bills.”
-- Damian Mora, energy coordinator, Garbett Homes