Should sub slab insulation either EPS or XPS be placed above or below the sub slab vapor barrier?
We will be using ICF's with an 8" core, using a capillary break on top of the footing. Sub slab insulation will consist of 2 layers of 2" foam board with offset seams. Sub Slab Vapor Barrier will be Vapor Block 10 type A.
Posted Sep 16, 2012 6:21 PM ET
Edited Sep 16, 2012 6:21 PM ET
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