Air Sealing Between Double Top and Bottom Plates
I have a small cabin build in process on an insulated slab on grade foundation.
The exterior 2×6 24 oc framing is up, and the sheathing, roof trusses and roof are on. The bottom plates overhang beyond the slab edges to cover the slab insulation. Per Wisconsin code, I doubled the bottom plates to get enough overhang.
So, I’m wondering a bit about the best way to seal BETWEEN the 2 bottom plates and the 2 top plates now that they’re already in place. The top plates are doubled SPF 2x6s. On the bottom plates, the sill plate is LP Solid Guard treated LSL, so, much like OSB. The 2nd bottom plate (upper) is SPF.
How would you seal between 2 SPF plates and between an SPF plate and an LSL plate? Would you use tape or caulk?
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