
I have been able to reduce the leakage rate of a challenging house built in the 1920s. Still, the homeowners are adamant about wanting to address a couple of tough spots, and I need some help. The two spots are the mail slot in the front storm door and the attic fan. The mail slot: The attic fan: So, the attic fan is the focus for now. Notice the door hardware on each side of the wood panel…
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