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Old 02-08-2008, 05:01 AM   #1
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vapor barrier in garage ceiling?


hi,
I am finishing the drywall in my deattached garage and I am starting the ceiling, and insulating it. I am using unfaced batts (got a great deal in bulk) of insulation that is laid in the rafters. Does the attic insulation need a vapor barrier?

If yes, plastic or paper and on which side? if paper, can I use regular brown paper off a roll that you can pick up at Lowes and cut to size? also I will be putting up 8 finished light housings (each one has 4 flurescent bulbs, looks like a classroom light) into the drywall, do the lights need a certain code to be safe to touch insulation or have insulation cover them?

thanks

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Old 02-08-2008, 06:44 AM   #2
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vapor barrier in garage ceiling?


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Originally Posted by BleachCola View Post
I Does the attic insulation need a vapor barrier?
Yes.

Quote:
Originally Posted by BleachCola View Post
If yes, plastic or paper and on which side?
Use a 4 mil Poly film, stapled to the joists - facing the the garage area.

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Originally Posted by BleachCola View Post
if paper, can I use regular brown paper off a roll that you can pick up at Lowes and cut to size?
No, you cannot use "regular brown paper" off a roll (Rosen paper).
It is not in anyway, shape, or form - a vapor barrier material.

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Originally Posted by BleachCola View Post
....also I will be putting up 8 finished light housings (each one has 4 flurescent bulbs, looks like a classroom light) into the drywall, do the lights need a certain code to be safe to touch insulation or have insulation cover them?
The lights must be IC rated (Insulated Ceiling).


Last edited by AtlanticWBConst.; 02-08-2008 at 06:49 AM.
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