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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.

Thorough air sealing is one way the Habitat for Humanity affiliate in Loudon County, FL, improves the efficiency and weather resistance of its homes.
Presentation:

Tips for Installing a Weather Resistive Barrier

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To minimize air leakage through electrical boxes, the boxes were either wrapped with fire-resistant putty (required at fire-rated walls) or wire penetrations were foamed and the boxes were caulked to the drywall.

To minimize air leakage through electrical boxes, the boxes were either wrapped with fire-resistant putty (required at fire-rated walls) or wire penetrations were foamed and the boxes were caulked to the drywall.
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To prepare for a total duct test at final, cover all of the supply outlets and return inlets

To prepare for a total duct test at final, cover all of the supply outlets and return inlets
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To prepare for a total duct test at rough-in, cover all of the supply outlets and return inlets

To prepare for a total duct test at rough-in, cover all of the supply outlets and return inlets
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To remove old exterior caulk, use a utility knife (left) or a putty knife (right) to cut along both edges.

To remove old exterior caulk, use a utility knife (left) or a putty knife (right) to cut along both edges.
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To seal a partition wall at the floor-exterior wall junction: a. install self-adhered membrane over subfloor, rim joist, and partition wall; b. construct walls of next floor, install more flashing over first flashing and up partition wall

To seal a partition wall at the floor-exterior wall junction: a. install self-adhered membrane over subfloor, rim joist, and partition wall; b. construct walls of next floor, install more flashing over first flashing and up partition wall
Video:

Total Duct Leakage Tests

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Total Rater-measured duct leakage ≤ 8 CFM25 per 100 sq. ft. of conditioned area

Total Rater-measured duct leakage ≤ 8 CFM25 per 100 sq. ft. of conditioned area
CAD File:

Turned down concrete slab - 1 1/2 inch rigid insulation

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Turned down concrete slab - 1 1/2 inch rigid insulation
CAD File:

Turned down concrete slab - 1 inch rigid insulation

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Turned down concrete slab - 1 inch rigid insulation
CAD File:

Turned down concrete slab - 3/4 inch rigid insulation

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Turned down concrete slab - 3/4 inch rigid insulation
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Two pillows and two garbage bags are used to make a chimney air sealing pillow

Two pillows and two garbage bags are used to make a chimney air sealing pillow
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Typical installation of a double section modular home on a pier and ground anchor foundation

Typical installation of a double section modular home on a pier and ground anchor foundation
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Typically, you will remove the glass panels from the frame before installation; check the manufacturer’s instructions.

Typically, you will remove the glass panels from the frame before installation; check the manufacturer’s instructions.
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Underwriters Laboratory label for a safe room door.

Underwriters Laboratory label for a safe room door.
Video:

Unvented Attic Insulation (1)

Video:

Unvented Attic Insulation (2)

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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

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

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 a filler piece and taped top edge of existing house wrap or building paper to seal the top of wall-to-roof transition

Unvented roof assembly at rake retrofitted with a filler piece and taped top edge of existing house wrap or building paper to seal the top of wall-to-roof transition
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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

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 a gloved finger or a piece of plastic with a round edge (such as a plastic spoon) to “tool” caulk. This pushes the caulk into the seam and creates a smooth appearance.

Use a gloved finger or a piece of plastic with a round edge (such as a plastic spoon) to “tool” caulk. This pushes the caulk into the seam and creates a smooth appearance.
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Use a gun-type applicator for greater control when installing canned spray foam to the wall-to-slab seam.

Use a gun-type applicator for greater control when installing canned spray foam to the wall-to-slab seam.