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Old 07-30-2022, 10:12 PM   #35
John Mercier
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Much higher to me would be due to reduce air flow.
The much higher temperature creating the drafting effect...
But registering a much higher temperature over a long period of time... including early morning hours... should be a red flag that the draft is not working.

A higher than ambient humidity level over the long period also can be a red flag that the draft is not working.
It can be caused by other items, but an attic fan would not be the first plan of attack... more of a band-aid covering up a bigger problem.

But one item at a time needs to be addressed. If the draft is working correctly... then she can turn her attention to reducing humidity transmission from below - hence my focus on gutters. Charging unsealed foundation walls with wet soil is going to increase humidity in the interior.

It is a process... but one item at a time needs to be addressed.
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