Showing results 101 - 200 of 733
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2021 IECC Climate Zones 7 and 8: Vented Attic, 2x4 Wall, Interior Insulated Basement
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2021 IECC Climate Zones 7 and 8: Vented Attic, Exterior Double Wall, Interior Insulated Basement
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2021 IECC Climate Zones 7 and 8: Vented Attic, ICF Wall, ICF Basement Foundation
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2021 IECC Climate Zones 7 and 8: Vented Attic, Interior Double Wall, Interior Insulated Basement
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2021 IECC Climate Zones 7 and 8: Vented Attic, Strapped 2x6, Interior Insulated Basement
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2021 IECC Climate Zones 7 and 8: Vented Cathedral Ceiling, 2x6 Wall, Interior Insulated Basement
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2021 IECC Climate Zones 7 and 8: Vented Cathedral Ceiling, 2x6 Wall, Slab on Grade
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2021 IECC Climate Zones 7 and 8: Vented Over-Roof, Unvented Cathedral Ceiling, 2x6 Wall, Interior Insulated Basement
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A 1- and ½-story home with a room located in the attic and the thermal boundary located at either a) the walls and ceiling of the attic room with small vented attic spaces or b) the roof line for an unvented attic
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A blower door is used to test air leakage in this multifamily building during construction
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A builder, energy efficiency consultant, and crew supervisor inspect a spray foam installation.
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A caulk gun is a simple but power tool for sealing narrow cracks between framing and around penetrations.
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A continuous bead of sealant is installed to air seal along the top and bottom plates at all exterior walls and intersecting interior walls as well as around windows in exterior walls
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A flexible membrane was installed across the floor joists to prevent air movement between the floor joists in this multifamily 1-hr partition wall assembly
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A large bead of caulk is installed on the interior surface of the wall top and bottom plates to provide an air sealing gasket between the framing and the dry wall.
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A low-sloped shed roof with the thermal boundary located at either a) the flat ceiling with a vented attic or b) the roof line for an unvented attic
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A manometer is used to measure pressure differentials between indoors and outdoors when testing whole-house air leakage.
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A piece of siding is used as sill extension and to provide slope in the opening for the window, which is deeper because exterior rigid foam has been added
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A rigid air barrier of non-paper-faced gypsum board is installed before the bathtub is installed and all seams are caulked
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A second layer of rigid insulation is installed over the 2 in. by 4 in. retaining strip
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A sill gasket is installed under the two layers of fire-rated gypsum providing air sealing at the foundation slab in this 2-hour fire wall separating two units in a multifamily row house building
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A sill-sealing foam gasket is placed under 8-inch plywood base and two beads of caulk air seal the 2x6 sill plate to it; two more beads of caulk will top the 2x6 which will serve as a spline for the SIP wall panel.
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A technician assembles the spray sealant injection system to seal HVAC ducts from the inside
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Adding air-sealing and rigid foam insulation at the wall-to-overhanging floor juncture at the outside corner of an existing home
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Adhesive caulk is used to seal seams and attach the multiple layers of rigid insulation
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Air leaking through the home's envelope wastes a lot of energy and increases energy costs.
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Air seal a heat pump or air conditioner air handler cabinet at all seams, holes, and junctions
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Air seal all holes and seams in the furnace cabinet with mastic, foil tape, or putty
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Air seal around all duct shafts and flues installed through ceilings, walls, or flooring to keep conditioned air from leaking into unconditioned space.
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Air seal around kitchen and bathroom exhaust fans to keep conditioned air from leaking into unconditioned space.
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Air seal connection of the ceiling sheathing to the exterior wall of a 1-hr fire-rated partition wall of a multifamily building
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Air seal door and window rough openings with backer rod, caulk, or nonexpanding foam
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Air seal duct boot to ceiling by installing fiberglass mesh tape and mastic over seam
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Air seal the common wall between units in a multifamily structure to minimize air leakage.
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Air-seal above-grade sill plates adjacent to conditioned space to minimize air leakage.
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Air-seal around all plumbing and piping installed through walls, ceilings, and flooring adjacent to unconditioned space to prevent air leakage.
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Air-seal around all wiring installed through walls, ceilings, and flooring to keep conditioned air from leaking into unconditioned space.
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Air-seal around recessed can light fixtures that are installed through ceilings to keep conditioned air from leaking into unconditioned space.
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Air-seal drywall to top plates at all attic/wall interfaces to minimize air leakage.
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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