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Old 07-14-2012, 11:49 AM   #1
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insulating a ceiling

we recently removed the ceiling in the upstairs bedroom and noticed there was no insulation. We have a flat roof and would like to insulate to help with heating bills. How much insulation should i use? There is a 10 inch space between wooden roof and drywall ceiling. Does the drywall need an air space between it and the insulation?


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Old 07-14-2012, 12:06 PM   #2
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Is the current roof vented?

The air space goes between the insulation and the underside of the roof and not the drywall.

More pictures will help in this case.


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