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Discussion Starter · #1 ·
Hey guys, when you take all the time to insulate an attic but then have a large fan in the floor of the attic, how do you insulate that what do you do?
 

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Don't the HVAC guys frown on whole house fans, seeing how they suck in fresh air through the windows and all?
 

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Whole house fan?

We usually make them hinge up so they can drop bats down on the louvers in the winter.. Good idea to add a switch up there so it can't be accidentally turned on in the winter.
 

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Discussion Starter · #5 ·
Ok, it needs to be covered in the winter and then removed in late spring to create negative pressure.
 

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I've always seen a fiberglass batt layer on top of the louvers during the winter
 
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