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Garage Insulation

2K views 3 replies 3 participants last post by  Jim Hart 
#1 ·
When insulating an unheated garage should I use a vapor barrier? I will use kraft faced on the ceiling so I can staple it in place prior to hanging my drywall but what about the walls?
 
#2 ·
If it was me, I would go with the vapor barrier, since you never know when you may want to use for other stuff (ie Guy cave, studio, body work). The better you can keep the cold from coming in during the Winter, the better you can keep it heated if you have to work for more then a couple of hours in the space.
 
#3 ·
I definitely would! That stops the warm, moist air from rising off the car and getting the new insulation wet. Be sure to ventilate the roof above the insulation. Drywall will only slow it down with a permeability of 40. I would also use one of the paints listed, to stop the water at the surface of the drywall: http://www.panhandleinsulation.com/buildingmaterials.html
Be safe, Gary
 
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