The wall sits on the wood which sits on a rough 2" concrete block.
How should I cover this edge so that I have a single clean surface from the floor to the wall?
Best Answer
In all cases like this, I have this covered with a durable paintable material. In your case I would use a 1X PVC material to cover from the floor to the top of the 2X plate and another piece of PVC or 1X wood to cover the top of the plate and PVC edge and paint it all.
It sounds to me that the first thing you should do is rebuild your drainage system. If you still feel that once the system has been adequately rebuilt, or if this is not a feasible option for you, then there are various floor water sealing products out there you can use.
You'd have to treat it like a hardwood floor t&g repair:
Run a circular saw down one side, staying away from seam at least
the thickness of the tongue, with depth set to board thickness.
Repeat #1 along the other side.
Connect the top and bottom cuts across the board, either with a chisel or OMT (Oscillating multi tool).
Carefully cut into corners to free the 4 border pieces, as necessary. They may just pry out.
Trim the bottom half of the groove off. (I like to use a table saw and fence). You should be able to wedge it in with the tongue intact, though a small bottom bevel might assist it.
Sparingly glue along edges of existing tongues and the new board edges and weight it down, as necessary.
Best Answer
In all cases like this, I have this covered with a durable paintable material. In your case I would use a 1X PVC material to cover from the floor to the top of the 2X plate and another piece of PVC or 1X wood to cover the top of the plate and PVC edge and paint it all.