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Cavity was not air sealed

Cavity was not air sealed

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No insulation installed in cavity and not air sealed

No insulation installed in cavity and not air sealed

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Sealing Air Barrier Penetrations, Info-405

Reference

Factsheet describing air-sealing.

Interior removable storm windows insulate and air seal

Interior removable storm windows insulate and air seal

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Cavity used for return is not insulated and is not air sealed, which will pull in air from outside

Cavity used for return is not insulated and is not air sealed, which will pull in air from outside

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Installing European Passive House Windows #005: Interior Air Sealing

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Video describing how to air seal the interior of European passive house windows. This video is part of an eight-video series by Hammer & Hand.

Pumpkin Ridge Passive House Video #15: Window Install Prep & Air Sealing

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Video describing how to prep and air seal the wall cavity for window installation.

Spray foam insulation is installed in open wall cavities to air seal and insulate

Spray foam insulation is installed in open wall cavities to air seal and insulate

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Right - Spray foam insulation air-seals the ceiling-to-drywall seams at the wall top plate.

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Right - Closed-cell spray foam covers the ceiling and joists to insulate and air-seal the ceiling deck.

Right - Closed-cell spray foam covers the ceiling and joists to insulate and air-seal the ceiling deck.

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Infrared thermography during depressurization testing reveals air leakage at corner of spray foam-insulated room where wood-to-wood seams in framing were not air sealed

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A simple vented attic with good air-sealing of the drywall ceiling air barrier, air flow from soffit vents to ridge vents protected by ventilation baffles, and lots of insulation covering the attic floor is unlikely to encourage ice dams.

A simple vented attic with good air-sealing of the drywall ceiling air barrier, air flow from soffit vents to ridge vents protected by ventilation baffles, and lots of insulation covering the attic floor is unlikely to encourage ice dams.

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The original corner seam is air-sealed with caulk, then rigid foam is installed on the existing garage ceiling and walls, and finally covered with drywall.

The original corner seam is air-sealed with caulk, then rigid foam is installed on the existing garage ceiling and walls, and finally covered with drywall.

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Right-- IR photo shows how effectively spray foam insulated/air sealed attic kneewall and the floor cavities under kneewall

Right-- IR photo shows how effectively spray foam insulated/air sealed attic kneewall and the floor cavities under kneewall

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Contractors install gasket between the second-story top plate and the rim joist to air seal at this wall to attic transition (Source: S&A Homes).

Contractors install gasket between the second-story top plate and the rim joist to air seal at this wall to attic transition (Source: S&A Homes).

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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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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

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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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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Rigid foam insulating sheathing installed over an existing garage ceiling with retrofits to air seal exterior wall before adding exterior wall insulating sheathing

Rigid foam insulating sheathing installed over an existing garage ceiling with retrofits to air seal exterior wall before adding exterior wall insulating sheathing

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Side view showing air-sealing and rigid foam insulation is installed over existing wall and ceiling under a room above, then covered with new gypsum board.

Side view showing air-sealing and rigid foam insulation is installed over existing wall and ceiling under a room above, then covered with new gypsum board.

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Side view showing how the existing garage wall and ceiling are air-sealed prior to installing rigid foam insulation on the garage side of the shared wall of an existing home.

Side view showing how the existing garage wall and ceiling are air-sealed prior to installing rigid foam insulation on the garage side of the shared wall of an existing home.

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Plan view (from above) showing how the existing garage wall gypsum board is cut away to air-seal the shared wall before adding rigid foam insulation on the garage and exterior walls of the home.

Plan view (from above) showing how the existing garage wall gypsum board is cut away to air-seal the shared wall before adding rigid foam insulation on the garage and exterior walls of the home.

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FLAT ROOF. Proper way to seal vents and pipes.

Video

Video describing how to properly seal vent and pipe penetrations in a rooftop to prevent moisture damage.

No Ducts or Air Handlers Located in Garage

Guide

Guide describing how to design HVAC systems to be located within the conditioned space of the home, either in a utility closet or in an attic, basement, or crawl space.

Fully Sealed Continuous Weather Resistance Barrier (3)

Video

Video describing how to fully seal a continuous weather resistance barrier.

Right – Closed-cell spray foam seals the wall cavities.

Right – Closed-cell spray foam seals the wall cavities.

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Air Leakage in Recessed Lighting

Reference

Article describing recessed lighting, which if installed incorrectly may contribute to air leakage and compromise building envelope efficiency.

Seal all drywall-to-top plate seams and penetrations at the attic floor

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Right – This attic knee wall and the floor joist cavity openings beneath it are being sealed and insulated with spray foam.

Right – This attic knee wall and the floor joist cavity openings beneath it are being sealed and insulated with spray foam.

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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

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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