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Air sealing (garage wall)

Air sealing the garage wall means sealing gaps and penetrations so garage air does not leak into the home.

Insulation, Air Sealing, and Ventilation

Why it matters

It helps keep fumes, dust, and cold air out of living spaces.

Where people get this wrong

Insulation alone does not stop air leaks. The attic above a garage can be a major leak path if it is not detailed carefully.

Real-world example

You smell gasoline in a mudroom closet near the garage. That smell often travels through small gaps around pipes, wires, and framing.

Where this hits your build

This affects comfort, energy costs, and indoor air quality. It gets locked behind drywall, so decisions here need to be right before finishing starts.

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