BASC Search | Building America Solution Center

Plumbing penetrations through the subfloor are air-sealed.

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

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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.

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Air-seal the floor above a garage when there is living space above the garage and make sure floor insulation is in full contact with the underside of the subfloor.

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Air barrier at garage band joist - 1 1/2 inch rigid insulation with 2x4 sleepers

CAD File

Air barrier at garage band joist - 1 inch rigid insulation with 1x3 wood furring

CAD File

Air barrier at garage band joist - 1 inch rigid insulation with 2x2 wood furring

CAD File

Floor Above Garage

Guide

Guide describing how to create an air barrier between the garage and the conditioned space above it to prohibit pollutants from entering a home's interior.

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.

New Whole-House Solutions Case Study: Nelson Construction: Hamilton Way, Farmington, CT

Case Study

Case study describing the design and testing of 10 high-performance homes in Farmington, Connecticut.