Showing results 151 - 200 of 733
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All of the ductwork for the efficient (8.5 HSPF, 15 SEER) heat pump is mastic sealed and installed in conditioned space.
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All of the sheathing seams and joints in the exterior walls of this multifamily building are air sealed with tape including the seams at the party wall interfaces
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All seams between structural insulated panels (SIPs) foamed and/or taped per manufacturer's instructions
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An energy rater will check for dry rot and moisture problems as well as air leakage around windows and doors.
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An infrared camera can show heat transfer and air leaks not visible to the naked eye.
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An IR camera image shows gaps around HVAC flue pipes allow conditioned air to leak through blown fiberglass into the attic
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Assembly details for a 1-hour separation wall between dwelling units in multifamily row houses
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Assembly details for a 2-hour separation wall between dwelling units in multifamily row
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Assembly details for a double-1-hour separation wall between dwelling units in multifamily row houses
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Balloon-framed walls have no top plate to prevent air flow into wall cavity
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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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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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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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Bottom plate-subfloor joints, corners, and wiring holes are all sealed with foam to improve the airtightness of the homes.
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Builders use an infrared camera to “see” heat flow and air leakage around a window during construction.
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Canned spray foam is an excellent sealant for sealing cracks, seams, and holes around pipes up to a half inch in diameter.
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Caulk may be used to seal the cracks in the band joist area
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Clean the attic floor of debris prior to installing new attic insulation. Use baffles to provide a path for ventilation air entering the attic from the soffit vents
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Closed-cell backer rod is installed for air-sealing window and door rough openings.
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Compartmentalization isolates each dwelling unit within a multistory multifamily building, preventing vertical and horizontal airflow between units
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Compartmentalization isolates each dwelling unit within a rowhouse, preventing horizontal airflow between units
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Compartmentalization uses air sealing to reduce the stack effect in a multistory building - the large vertical pressure difference in a tall building is separated into smaller pressure differences at each floor
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Condensation in storm windows can be prevented by air sealing around the storm window and allowing some ventilation to the outside from the original window
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Connect the plastic application tunnel from the injection equipment to the supply plenum.
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Correct air sealing methods for common attic bypass air leakage paths.
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Cut fiber board with a red V-groove tool and a gray shiplap tool to create mitered corners and a shiplapped edge for duct sections
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Cut-away view showing unsealed gaps around a heating duct that goes through a wall