Insulating an already dry walled garage attic question

[Jeremy5431]

I was given a Reznor 75,000 BTU heater that’s like brand new yesterday. I have my walls insulated, but my attic is not. My thought was to use paper faced batts as the vapor barrier

My question is if that will be sufficient as a vapor barrier or do I need to use the plastic barrier as well? Also do I need to protect the rafters that touch the drywall?

Thanks for your help!


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[Jeepster04]

Paper faced would be fine, put the paper towards the heated part of the ceiling. You would need to remove the drywall to add plastic.

I personally went with blown in insulation in my attic above my garage.

 

[Jeremy5431]

Paper faced would be fine, put the paper towards the heated part of the ceiling. You would need to remove the drywall to add plastic.

I personally went with blown in insulation in my attic above my garage.

Blown would be ideal and it’s something to consider. I’m assuming I’d have to put plastic down before blowing it in there?

Also I do use the attic for storage so I’m thinking I could use rolls under the storage part and blown in the rest of the attic.


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[TurnipTruck]

In your case, I would use a vapor-resisting paint on the ceiling and blow in a couple feet of insulation. If your soffits are open, add the baffles.