Insulating milk chute. Do I need a vapor barrier


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Old 07-18-18, 05:41 PM
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Insulating milk chute. Do I need a vapor barrier

I'm going to be in insulating the interior side of a milk Chute the milk Chute has plywood covering on the exterior and my question is if I should be putting vapor barrier and or XPS rogod foam and or just plain old batting on the interior before I cover up with drywall
 
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Old 07-18-18, 07:37 PM
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If it's not a very deep or large space, I would just cut rigid foam to fit tight and then seal the edges of every layer of foam you add with a foam adhesive like PL300.
 
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Old 07-19-18, 09:24 PM
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the outside has a mail slot that I will be removing and covering the area with one peice of plywood. The area is painted will pl300 bond to it ?

for the interior is 1 layer of rigid foam enough and then plywood ? If I do just one layer theres is an area for people to keep their keys . But then not that much insulation.

or. Build up with foam and cover with drywall?
 
 

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