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Balanced ventilation dominates ventilation specifications by Zero Energy Ready Home builders
Balloon-framed walls have no top plate to prevent air flow into wall cavity
Basement foundation insulated on the exterior with termite shield extending out past the top the of the insulation
Basement plan showing sump pump location and perimeter drain that empties to the sump pit
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
Basic foundation types: deep basement, submerged crawl space, flush crawl space, and slab-on-grade
Basic layout diagram of an AC-coupled solar battery system with a Grid-tied (hybrid) setup
Bathroom exhaust fans are timer-operated to encourage removal of moisture from the home.
Batt insulation is installed in two layers in perpendicular directions against the baffle to full required insulation height
Batt insulation is installed in two layers with offset seams against the baffle to full code-required insulation height
Batt insulation should be cut to fit around wiring so that insulation can completely fill the wall cavity
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.
Because flue temperatures are cool, intake and exhaust ducts on a Category 4 direct-vent sealed-combustion condensing furnace can be made of PVC
Because the above-grade potions of the wall lack exterior insulation, condensation and even ice form during cold winter conditions
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.
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
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
Bees made a nest in the drainage plane behind a brick veneer wall by entering via unscreened weep holes
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.
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.
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.
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
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.
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.
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.
Berms are compacted earth or gravel ridges that slow the flow of water from rain, riverine flooding, or storm surges in coastal areas.
Berms, swales, bioswales, ridges, and vegetation all help to control rainwater runoff on residential sites.
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.
Bioswales or rain gardens filter storm water through vegetation and rock and sand substrate layers.
Bioswales receive rainfall and filter it through different substrate layers, preventing flooding and storm surges from occurring