Seal Attic Air Leaks

If you’re about to add insulation to your attic and you’ve never heard the term “attic bypasses,” you’re missing the crucial part of insulating your attic. Attic bypasses are air leaks from your living space into your attic.

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These leaks occur where wires, air ducts or pipes go through the ceiling and into the attic. Bypasses must be sealed before adding insulation. In fact, in many states it’s the law. However, in homes built before 1991, there was probably no attempt to seal bypasses. After that, there’s a good chance some of the larger bypasses were sealed, but li