![]() ![]() Figure 3. Air sealing a plastic electrical box (Source: Air Barriers - Airtight Drywall Approach, Info-401 2009). Or, as another option, install standard electrical boxes and caulk all of the openings in the box (including around wire penetrations), then seal the face of the box to the drywall with caulk. ![]() Figure 2. Air sealing an electrical box (Source: Air Barriers - Airtight Drywall Approach, Info-401 2009).
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