My house sits on a stuccoed block wall which is on top of a concrete
slab. (I use a mechanics creeper to get around in the crawlspace.)
Anyway, for some reason the slab was made about 8" larger all the way
around the house. (I'm not the first owner) When it rains little
cracks between the slab and the mortar allow water to come in. I
thought about using more mortar to form a beveled edge at the bottom of
the block wall but pictured that developing little cracks also. I
thought about silicone but didn't want to ruin the chance for the
adhesion of anything else if the silicone didn't work.
I ended up "painting" the area where the cracks are with the basement
wall waterproofing paint Lowes carries, it's called Lock Tite. It
worked great for a couple weeks, then tiny cracks developed so I gave it
another coat. That worked a couple weeks then it leaked again.
I'm thinking of silicone since it will remain flexible, and it should
adhere to the waterproof paint well. To make things worse, the extra 8"
of slab that sticks out isn't level and it makes the water run toward
the block wall instead of away from it.
Any idea's before I try the silicone sealer?