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Screw the storm window frame into the existing window’s wood casing to secure it.

Screw the storm window frame into the existing window’s wood casing to secure it.
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Seal all drywall-to-top plate seams and penetrations at the attic floor

Seal all drywall-to-top plate seams and penetrations at the attic floor
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Seal all holes and seams in furnace and air handler cabinets

Seal all holes and seams in furnace and air handler cabinets
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Seal all penetrations through the band joist

Seal all penetrations through the band joist
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Seal all wood framing joints surrounding the chase with sealant and lay a bead of sealant along top edge of chase framing

Seal all wood framing joints surrounding the chase with sealant and lay a bead of sealant along top edge of chase framing
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Seal all wood framing joints surrounding the chase with sealant and lay a bead of sealant on top edge of chase framing

Seal all wood framing joints surrounding the chase with sealant and lay a bead of sealant on top edge of chase framing
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Seal bottom layer of rigid insulation with adhesive, tape and nails

Seal bottom layer of rigid insulation with adhesive, tape and nails
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Seal gaps around pipes and wiring with caulk or spray foam from the outside to prevent water and air from entering.

Seal gaps around pipes and wiring with caulk or spray foam from the outside to prevent water and air from entering
Video:

Seal Seams in Air Handler Cabinets

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Seal seams in fiber board ducts with out-clinching staples, UL-181A-approved tape, and mastic

Seal seams in fiber board ducts with out-clinching staples, UL-181A-approved tape, and mastic
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Seal the crack between the sill plate and the foundation wall

Seal the crack between the sill plate and the foundation wall
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Seal the drywall to the top plates as part of the home’s continuous air barrier

Seal the drywall to the top plates as part of the home’s continuous air barrier
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Seal the drywall to top-plate seams and the lower edge of baffles to the top plate to prevent the air coming from soffit vents from flowing under baffles into insulation.

Seal the drywall to top-plate seams and the lower edge of baffles to the top plate to prevent the air coming from soffit vents from flowing under baffles into insulation.
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Sealant is installed to air seal along the top and bottom plates of exterior walls and along both sides of the first interior stud on intersecting interior walls

Sealant is installed to air seal along the top and bottom plates of exterior walls and along both sides of the first interior stud on intersecting interior walls
Video:

Sealed and Insulated Flex Ducts

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Sealing the vent area insulation

Sealing the vent area insulation
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Sealing walls to foundation using SIGA tape

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Seams in framing are sealed with caulk.

Seams in framing are sealed with caulk.
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Second layer of rigid insulation is adhered with foam

Second layer of rigid insulation is adhered with foam
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Section view of duct or pipe penetration through exterior wall showing flashing and air sealing details

Section view of duct or pipe penetration through exterior wall showing flashing and air sealing details
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Section view of electric box installation in exterior wall showing flashing and air sealing details

Section view of electric box installation in exterior wall showing flashing and air sealing details
Video:

Seismic & Wind Design Considerations for Wood Framed Structures

Presentation:

Selecting Healthy Insulation and Air Sealants

Video:

Shafts (e.g., Duct, Flue)