What type of capillary break material is this?
Hi all-Preparing for installing 2 inches of GPS, 2×4 stud wall, roxul, drywall. Since I only have 1-4 inches of exposed exterior foundation for outward drying depending where along the house it is, I am a bit concerned about sill plate rot. The attached picture is the capillary break under my sill plate. Feels like a black poly material, perhaps a bit thinner then standard 6 mil if I had to guess. Toronto, zone 5.
1. What is this material?
2. Is it adequate to keep my sill plate dry, since I will be trapping moisture in the cement via the insulation potentially causing wicking to the sill?
Current insulation on the poured concrete foundation is the standard R12 builders blanket. 1979 build.
Thanks for your thoughts.
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