My problem is that my home is apparently not sealed at the lower
edge. Bugs crawling up the outside wall can climb in across the top
of the concrete block and into my nice clean home.
My plan is for this summer. My intention is to apply foam fill
along the outside of the house to fill up cavities along the sill on
the inside, This is to be followed up by screwing a length of
plywood into whatever wood is behind the foam insulation on the
plywood sheathing of the house. A dash of calk for some
weatherproofing and I hope all this poses some barrier to the bugs.
Work on the inside is unknown as of yet. The previous owners have a
finished basement, and to get at the inside will require some
disassembly of the ceiling.