Unheated Garage-Vapor Barrier Needed??
 
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Old 10-17-2009, 04:19 PM   #1
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Unheated Garage-Vapor Barrier Needed??

Going to be drywalling my un-heated garage and going to be insulating it. Is vapor barrier still a good idea even though its not going to be heated?? Thanks

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Old 10-17-2009, 05:06 PM   #2
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Re: Unheated Garage-Vapor Barrier Needed??

yes.
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Old 10-17-2009, 05:14 PM   #3
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Re: Unheated Garage-Vapor Barrier Needed??

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Originally Posted by tonyvlx View Post
Going to be drywalling my un-heated garage and going to be insulating it. Is vapor barrier still a good idea even though its not going to be heated?? Thanks
Even if you don't ever heat, since it's
insulated there will be a temperature differential.
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Old 10-17-2009, 09:04 PM   #4
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Re: Unheated Garage-Vapor Barrier Needed??

My opinion is to put it up and cut several 5' slashes in the plastic. You better prefill and do a good job!
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Old 10-27-2009, 08:42 PM   #5
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Re: Unheated Garage-Vapor Barrier Needed??

What's the point of installing a vapor barrier and then cutting it?
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Old 10-27-2009, 09:22 PM   #6
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Re: Unheated Garage-Vapor Barrier Needed??

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What's the point of installing a vapor barrier and then cutting it?
To let it breath a little bit. Code for residential in my area calls for a vapor barrier on all ceilings and exterior walls. I think that can make a house too tight and a few slit's will let it breath a little.
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Old 10-27-2009, 09:46 PM   #7
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Re: Unheated Garage-Vapor Barrier Needed??

like my insulation guy says-"insulate tight, ventilate right." not sure that a couple 5 ' slits qualify!
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