First time homeowner here and trying to find how to seal the gap between foundation and siding wall in a split-level 1950s built home.
I Was originally planning to fill the gap with insulating spray foam and patch it on top with ready mix stucco patch and repair, textured stucco patch. Can the experienced folks please chime in and guide considering it's outside the house and I may need to take care of humidity escape, vermin deterrence etc.