ICE,Can you come up with an alternative design that requires very minimal "breaking
up of the concrete", ...say, some type of an "after thought" type of compliant grid?
Maybe some of the more experienced, electrically knowledged folks on here can
submit some type of design for you.
In the interest of "not beating up" [ figurativel speaking ] more on the fragile
homeowner, IMO, I would try my darnedest to come up up with some type
compliant design that did not disrupt further his life. I see this as an excellent
opportunity for you to perform some "above and beyond" customer service
from his government service.
We
ARE all about service to the public aren't we ?
Who knows, you may even get a "thank you" out of it.
FWIW, that's one of the great things about construction work. Even if things
seem permanent, there are still "fixes" for the "after-the-concrete-has-been
-poured-and-hardend" type of problem. Sometimes, one has to look a
little harder for the solution.
Have you got it solved yet?
.