stands_while_poops@lemmy.worldtoHome Improvement@lemmy.world•Handyman suggested cutting hole in 1330 sq. ft. attic for second attic ventilator. Does this make sense?
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6 months ago3000CFM is probably too much. Your exhaust needs to match your soffit intake in terms of how much air they move. You can’t just exhaust air without replacing that air. Find a roofing contractor and not a handy man.
If you’re gaining heat from the winter sun you’re likely losing more heat than you’re gaining from poor insulation.