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Insulated floor above garage - cavity insulation with 1 inch rigid insulation with 1x3 wood furring

Insulated floor above garage - cavity insulation with 1 inch rigid insulation with 1x3 wood furring

CAD File

Insulated floor above garage - cavity insulation with 1 inch rigid insulation with 2x2 wood furring

Insulated floor above garage - cavity insulation with 1 inch rigid insulation with 2x2 wood furring

CAD File

Insulated floor above garage - cavity insulation with 1 1/2 inch rigid insulation with 2x4 sleepers

Insulated floor above garage - cavity insulation with 1 1/2 inch rigid insulation with 2x4 sleepers

CAD File

Insulated floor above garage - cavity insulation with 1 1/2 inch rigid insulation with 1x3 wood furring

Insulated floor above garage - cavity insulation with 1 1/2 inch rigid insulation with 1x3 wood furring

CAD File

This heated garage plenum is insulated along the bottom and sides, and the insulation is fully aligned with an air barrier. The insulation at the bottom of the plenum space meets IECC insulation requirements.

This heated garage plenum is insulated along the bottom and sides, and the insulation is fully aligned with an air barrier. The insulation at the bottom of the plenum space meets IECC insulation requirements.

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Insulation support

Insulation support

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Spray foam insulation air-seals and insulates the floor above the garage; the joist will be filled with fibrous insulation in this flash-and-batt approach.

Spray foam insulation air-seals and insulates the floor above the garage; the joist will be filled with fibrous insulation in this flash-and-batt approach.

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Misaligned floor insulation

Misaligned floor insulation

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Correctly insulated floor

Correctly insulated floor

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Insulating Garages in Multifamily Buildings

Guide

Guide describing how to properly insulate garages in multifamily buildings.

Insulating Existing Floors over Garage

Guide

Guide describing how to insulate and air seal the floor joists over a garage when there is loving space above the garage.

This heated garage plenum space is insulated along its top, bottom and sides, and the insulation at the top of the plenum meets IECC requirements. The insulation along the top and sides is fully aligned with an air barrier.

This heated garage plenum space is insulated along its top, bottom and sides, and the insulation at the top of the plenum meets IECC requirements. The insulation along the top and sides is fully aligned with an air barrier.

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Scraps of rigid foam insulation can be used to fill in gaps and insulate narrow sections along the edges of the garage door.

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Batt insulation is not an effective air barrier

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Insulating Heated Garage Plenums in Multifamily Buildings

Guide

Guide describing methods for insulating heated garage plenums in multifamily parking garages.

This hot climate zone home uses high quality batt insulation between studs to insulate this connecting garage wall.

This hot climate zone home uses high quality batt insulation between studs to insulate this connecting garage wall.

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Wrong – Insulation is misaligned with floor above

Wrong – Insulation is misaligned with floor above

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Right – Insulation is in contact with floor above

Right – Insulation is in contact with floor above

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Insulation Installation Guide: Air Sealing Garage

Video

Video describing a technique for airtight drywall installation on garage walls using foam gasket strips.

Drop-in ceiling assemblies consisting of suspended ceiling tiles (common in multifamily buildings) are often insulated with fiberglass or mineral wool batt insulation.

Drop-in ceiling assemblies consisting of suspended ceiling tiles (common in multifamily buildings) are often insulated with fiberglass or mineral wool batt insulation.

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Unfaced batt insulation completely fills the wall cavities.

Unfaced batt insulation completely fills the wall cavities.

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This assembly for above-grade or below-grade garage walls in any climate zone uses a hybrid of continuous rigid insulation and cavity insulation on the interior side of the wall.

This assembly for above-grade or below-grade garage walls in any climate zone uses a hybrid of continuous rigid insulation and cavity insulation on the interior side of the wall.

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Right - This heated garage plenum has insulated ceiling tiles.

Right - This heated garage plenum has insulated ceiling tiles.

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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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Rigid Foam Insulation Installed Between Existing House and Garage Walls

Guide

Guide describing how to upgrade walls that separate the garage from the house by providing a continuous air control layer on the garage side of the wall and adding rigid foam insulation.

Right - This heated garage plenum is insulated along the bottom of the plenum space.

Right - This heated garage plenum is insulated along the bottom of the plenum space.

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Pieces of rigid foam insulation are cut to size to be fitted into the garage door.

Pieces of rigid foam insulation are cut to size to be fitted into the garage door.

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Right - The ceiling above the garage is air-sealed and insulated with spray foam.

Right - The ceiling above the garage is air-sealed and insulated with spray foam.

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Right – Spray foam insulates the walls and ceilings separating the garage from the home.

Right – Spray foam insulates the walls and ceilings separating the garage from the home.

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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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