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Wrong – Air barrier is not air sealed

Wrong – Air barrier is not air sealed

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Right – Air barrier is air sealed

Right – Air barrier is air sealed

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Air Sealing Attached Garage

Guide

Guide describing ways to air-seal an attached garage in new and existing homes.

Wrong – Air barrier not sealed

Wrong – Air barrier not sealed

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Right – Air barrier sealed

Right – Air barrier sealed

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Multifamily Air Sealing & Compartmentalization Strategies

Video

Video describing strategies for air sealing and compartmentalization in multifamily buildings.

Air Sealed, Insulated Basements

Guide

Guide describing how to insulate a basement to improve the overall thermal performance of the building and provide more dry, usable conditioned space for home occupants and HVAC equipment.

Air Sealing Duct and Flue Shafts

Guide

Guide describing how to air-seal duct and flue shafts.

Right – Vent and air barrier sealed

Right – Vent and air barrier sealed

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Wrong – Seams of air barrier not sealed

Wrong – Seams of air barrier not sealed

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Wrong – Seams of air barrier not sealed

Wrong – Seams of air barrier not sealed

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Wrong – Electrical box not air sealed

Wrong – Electrical box not air sealed

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Air Sealing and Insulating Ceilings in Vented Attics

Guide

Guide describing how to air-seal and insulate a ceiling where the insulation is installed on top of the ceiling (on the attic floor) in a vented attic.

Plumbing penetrations through the subfloor are air-sealed.

Plumbing penetrations through the subfloor are air-sealed.

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Right – Wiring penetrations properly air sealed

Right – Wiring penetrations properly air sealed

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Wrong – Penetration through the floor is not air sealed

Wrong – Penetration through the floor is not air sealed

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Right – Penetrations through the floor are air sealed

Right – Penetrations through the floor are air sealed

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Air Sealing Attic Access Panels/Doors/Stairs

Guide

Guide describing how to air-seal attic access panels, doors, and stairs to provide a continuous air barrier at the ceiling.

Right – All holes, gaps, and seams of the rigid air barrier are air sealed.

Right – All holes, gaps, and seams of the rigid air barrier are air sealed.

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Wrong - The rigid foam that was installed as an air barrier at the rim joist was not properly air-sealed.

Wrong - The rigid foam that was installed as an air barrier at the rim joist was not properly air-sealed.

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Right – Seams and penetrations of air barrier properly sealed

Right – Seams and penetrations of air barrier properly sealed

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Right – The knee wall is properly insulated and air sealed.

Right – The knee wall is properly insulated and air sealed.

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Wrong – The rigid air barrier material between the cantilever and the conditioned space is not air sealed at the seams.

Wrong – The rigid air barrier material between the cantilever and the conditioned space is not air sealed at the seams.

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Right - Penetrations through the band joist are properly air-sealed.

Right - Penetrations through the band joist are properly air-sealed.

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Right – The backing on this knee wall was air sealed prior to insulation.

Right – The backing on this knee wall was air sealed prior to insulation.

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Wrong – Rigid air barrier not properly sealed around skylight shaft

Wrong – Rigid air barrier not properly sealed around skylight shaft

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Right – Rigid air barrier properly sealed around skylight shaft

Right – Rigid air barrier properly sealed around skylight shaft

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Right – The band joist over this wall was properly insulated and air-sealed.

Right – The band joist over this wall was properly insulated and air-sealed.

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Wrong – The backing on this knee wall was not air sealed prior to adding insulation.

Wrong – The backing on this knee wall was not air sealed prior to adding insulation.

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Wrong – Air barrier not sealed between porch attic and conditioned space

Wrong – Air barrier not sealed between porch attic and conditioned space

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