Here s what s open or closed in la oc ie vc.
Open or closed attic.
My parents house has two small windows in the attic that open.
Closed cell foam can also increase the racking strength of attic walls which.
They need to be open in the summer.
Would it be better to keep them closed to keep out rain or open to allow ventilation.
It even rained and the sill got wet but not the floor.
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To provide background the house has a hot unfinished attic with blown cellulose and fiberglass insulation beneath the floor and no insulation along.
My home has a whole house fan installed in the upstairs hallway ceiling when its cool at night that thing can suck the heat out of the house in record time.
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After leaving the attic window open overnight it was amazing how cool it got in there.