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Northeast Nebraska | Because bats don't fill all of the cavity unless it was constructed perfectly. Meaning a stud could of gotten off a half inch. Shouldn't happen but it does. I know I framed mine and thought I did a perfect job, but there were some studs not perfectly 16"oc everytime.
You get a narrow cavity around a window or door you just keep on moving blowing it in.
Blow in will be more dense. | |
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