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Basement plan showing sump pump location and perimeter drain that empties to the sump pit
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Basic components of a gas tankless water heater include a high-powered burner, fan, and heat exchanger; condensing gas water heaters also have a secondary heat exchanger and a piped air intake to the sealed combustion chamber
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Basic foundation types: deep basement, submerged crawl space, flush crawl space, and slab-on-grade
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Basic layout diagram of an AC-coupled solar battery system with a Grid-tied (hybrid) setup
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Bathroom exhaust fans are timer-operated to encourage removal of moisture from the home.
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Batt insulation is installed in two layers in perpendicular directions against the baffle to full required insulation height
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Batt insulation is installed in two layers with offset seams against the baffle to full code-required insulation height
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Batt insulation should be cut to fit around wiring so that insulation can completely fill the wall cavity
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Because all of the structural load is carried by the SIP roof and wall panels, no trusses are needed, allowing the home to have vaulted ceilings and open interiors throughout.
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Because flue temperatures are cool, intake and exhaust ducts on a Category 4 direct-vent sealed-combustion condensing furnace can be made of PVC
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Because the above-grade potions of the wall lack exterior insulation, condensation and even ice form during cold winter conditions
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Because this ICF and spray foamed house is so well insulated, the HVAC system is smaller, the round metal ducts are smaller diameter, and the duct layout is more compact.
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Bedrooms pressure-balanced and provide 1 sq. in. of free area opening per 1 CFM of supply air or achieve a Rater-measured pressure differential ≤ 3 Pa
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Bedrooms pressure-balanced and provide 1 sq. in. of free area opening per 1 CFM of supply air or achieve a Rater-measured pressure differential ≤ 3 Pa
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Bees made a nest in the drainage plane behind a brick veneer wall by entering via unscreened weep holes
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Before conducting a blower door test, turn off any ambient gas water heater located in the conditioned space of the home; when the test is finished, turn the water heater back on and reset the pilot light if needed.
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Before installing drywall, contractors install two beads of a sprayer-applied elastomeric sealant along framing and top plates to forma a flexible, air-tight seal between the framing and dry wall.
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Before installing the windows, the window rough openings are sealed with a liquid-applied flashing that provides a seamless moisture and air barrier to protect the wall from water intrusion.
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Before sealing and insulating the crawlspace, the windows were sealed, the window wells backfilled, and sumps pumps were installed that discharged to the gutter downspouts
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Bellingham Bay Builders built this custom for buyer home in the cold climate in Friday Harbor, WA, and certified it to DOE Zero Energy Ready Home specifications in 2020.
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Bellingham Bay Builders built this custom for buyer home in the marine climate in Bellingham, WA, and certified it to DOE Zero Energy Ready Home specifications in 2018.
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Bellingham Bay Builders built this custom for buyer home in the marine climate in Seattle, WA, and certified it to DOE Zero Energy Ready Home specifications in 2019.
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Berms are compacted earth or gravel ridges that slow the flow of water from rain, riverine flooding, or storm surges in coastal areas.
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Berms, swales, bioswales, ridges, and vegetation all help to control rainwater runoff on residential sites.
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Between the ICF foundation walls, the builder sprayed closed-cell spray foam directly onto the gravel base to provide a vapor barrier and continuous layer of insulation under the slab.
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Bioswales or rain gardens filter storm water through vegetation and rock and sand substrate layers.
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Bioswales receive rainfall and filter it through different substrate layers, preventing flooding and storm surges from occurring
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Blocking has been applied between rafters to ensure foam does not fill the soffits.
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Blocking installed on a flat roof for a PV system rack is sealed around the edges with sealant then will be covered with self-adhering roof membrane to prevent water leakage
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Blower door tests can be an important part of a home energy assessment to check for comfort improvements
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Blown cellulose insulation completely fills the netted wall and ceiling cavities
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Bolted metal hurricane strapping ties the roofing to the framing and the framing to the foundation walls for resistance to high winds.