Showing results 201 - 249 of 249
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Section view of electric box installation in exterior wall showing flashing and air sealing details
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Spray foam provides a critical seal between the subfloor, rim joist, and sill plate
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The attic kneewall and the open floor cavities under kneewall are both sealed and insulated in one step with spray foam insulation
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The I-joist is continuous along the shared wall and serves as a natural air barrier between the garage and the house
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The missing top plate in a kneewall was covered with lumber and rigid foam insulation and then sealed with spray foam
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This basement is insulated on the exterior with rigid foam over dampproofing, with granular backfill and footing drains to facilitate drainage away from the foundation, a termite shield to protect from pests, and cellular PVC to protect the rigid foam.
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This exterior insulated slab-on-grade monolithic grade beam foundation is protected from pests by termite shield at the sill plate, borate-treated framing, flashing at end of wall insulation, brick veneer over slab-edge insulation, and rock ground cover.
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This exterior wall retrofit permits drying to the exterior of a sill plate installed on an untreated flat foundation wall
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This exterior wall retrofit permits drying to the exterior of a sill plate installed on an untreated irregular foundation wall
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This kneewall has no top plate and the resulting gap provides a wide-open pathway for air and vapor to travel between the living space and the attic
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Thorough air sealing is one way the Habitat for Humanity affiliate in Loudon County, FL, improves the efficiency and weather resistance of its homes.
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Unvented roof assembly at eave retrofitted with rigid foam, spray foam, and a fully adhered membrane seal at the top of wall-to-roof transition
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Unvented roof assembly at eave retrofitted with rigid foam, spray foam, and taped top edge of existing house wrap or building paper
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Unvented roof assembly at rake retrofitted with spray foam installed along the underside of the roof deck and extended to the rake edge to insulate and air seal the attic
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Use caulk or spray foam to air-seal all four edges of the blocking material in each joist bay.
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Vented roof assembly at eave retrofitted with rigid foam, spray foam, and fully adhered membrane to air seal the top of wall-to-roof transition
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Vented roof assembly at rake retrofitted with spray foam and additional insulation installed at the attic floor and extended to the rake edge
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When using I-joists, make sure to fill in the gaps on each side of the blocking material to air-seal the joist bay where a wall separates conditioned and unconditioned spaces.
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Wrong - Dark pattern on wall is showing where warm air is leaking into the wall cavity from interior of home.
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Wrong - Dark patterns on the Home's exterior siding show where warm air is leaking into the wall cavities.
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Wrong - Rigid insulation blocking is installed but not air-sealed with spray foam around edges.
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Wrong - The caulk is too far from the sill plate to effectively air-seal the gap.
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Wrong - The faced batt insulation does not provide an air barrier in the joist bay between the garage and the conditioned space of the home.
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Wrong - This is a poorly sealed chase with no solid air barriers along the sides of the chase and no caulk around the electrical wires installed through the ceiling of the chase.
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Wrong - Wall cavities behind shower are not completely filled with insulation and are lacking the solid interior air barrier.
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Wrong - When ceiling joists over a garage run perpendicular to the adjoining wall, the joist bays must be blocked and sealed to prevent garage fumes from entering the living space
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Wrong – An opportunity to use structural members as a natural air barrier was missed in this home and blocking was not initially planned for between the garage and living space.
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Wrong – Foam was sprayed at exterior sheathing and sill plate connection, leaving gaps beneath sill plate.
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Wrong – There is no foam gasket or air-sealing between the sill plate and masonry foundation.
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Wrong: Open wall cavities in the un-air-sealed return plenum connect the plenum to attic spaces
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Wrong: open wall cavity connected to this return air plenum is allowing cellulose attic insulation to be pulled into the furnace
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Wrong: The return plenum is not air sealed to separate it from the wall cavities and it should not be used for storage
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Wrong: This return air plenum is not lined and air sealed
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Wrong: This wall cavity is open to the attic allowing unconditioned, attic air to enter the HVAC system, bypassing the filter, and degrading system life and performance