Air-sealing plywood seams with Siga Wigluv tape from Small Planet Supply in Vancouver, BC.
Hannoband concrete-rated tape from Small Planet Supply helps prevent moisture migration at slab edge.
Sleeper sub-floor for a wood-over-concrete floor
What’s needed: 2 x 4 sleepers, sill-seal (as a capillary break), Tapcon screws and composite shims. Once complete we’ll insulate with Rockwool Comfortabatt 80 between sleepers and fasten down a 3/4” plywood subfloor.