In this episode of The Build Show, Travis walks through proven strategies for air-sealing electrical penetrations from the inside out, focusing on exterior walls and garage conditions where the air barrier is most vulnerable. Using real jobsite examples, he explains how thoughtful prep, liquid flashing, and “ridiculous overkill” detailing can dramatically reduce air leakage, protect indoor air quality, and improve energy efficiency—helping this home achieve near–Passive House performance.

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