BASC Search | Building America Solution Center

Spray foam insulation insulates and air seals around plumbing pipes and top plates in the attic.

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Wrong – Fibrous insulation is not an air barrier and cannot be used for sealing holes.

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Plumbing penetrations through the below slab insulation are sealed with tape and spray foam.

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Wrong - Wall cavities behind shower are not completely filled with insulation and are lacking the solid interior air barrier.

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Wrong - Tub or shower floor is not insulated and air-sealed with a solid barrier material between the floor joists and the tub. Plumbing pipes shouldn't be located in a cantilever.

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Evaluation of CNT Energy Savers Retrofit Packages Implemented in Multifamily Buildings

Reference

Report exploring feasibility of designing prescriptive retrofit measure packages for typical Chicago region multifamily buildings in order to achieve 25% source energy savings.

Air Sealing Plumbing and Piping

Guide

Guide describing how to air-seal around plumbing and piping penetrations through walls, ceilings, and floors.