Foundation flashing detail
We are in Minnesota (Zone 6a). 2200 sq/ft single level, slab on grade, with a 1700 sq/ft/ shop.
My 10″ double stud wall will cantilever 4″ to sit flush with the 4″ of perimeter foundation foam. I can flash the connection between the bottom plate and protect the foundation insulation all in one shot.
I attached a quick sketched detail of what I plan to do. I’ll just buy rolls of painted aluminum and nail it through the plywood sheathing into the studs and backfill. Then the WRB will lap over the top of the flashing above grade, rain screen battens and then siding.
No costly custom bent flashing, I can choose a nice color, it’s suitable for a below grade application, and it’s durable enough to protect the foam pretty much forever. Actually it seems too easy – what am I missing?
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