accessible slab to wood floor connection
We are designing an accessible house with a CMU foundation. We have a condition that comes up at all transitions between interior and exterior where we have a concrete slab flush with a wood floor over 2X10 joists.
We were thinking of placing two courses of 6″ CMU on the 12″ foundation. The slab comes up against the 6″ CMU, the stud wall is built on the 6″ CMU (like a garage), and the floor joists have 6″ bearing inside of the 6″ CMU.
Has anybody dealt with this issue? Will this work? Any better ideas?
Replies
Actually, the two-course "kneewall" is pretty elegant as is.
May wind up simpler in the detailing to make the entire top 12" course a bond beam block, so that the sill has good anchoring (bond beam block being a tiny bit simpler than just solid-filling cores on the top course).
Now, the exterior slabs to wall, use at least a 1/2" felt seperation, and hold it down 1/2" from finish, then use sealant & backer rod--don't forget you are allowed up to 1/4" vertically for barrier-free material transitions.
Only sticking point I come up with is how to shim the wood floor up to course out with the block. 3/8+5.625+3/8+5.625 is 12"; 12" - 9.25-1.5-3/4" is 1/2"