Do you ever think, “Man! Those guys were idiots—what were they thinking?”
This was the case for a recent project. This home had a concrete porch (from the 1970’s) poured against the house for a walk-out concrete patio.
The problem was, absolutely no consideration was given to the rainwater hitting the porch and running between the framed wall and the new concrete. The results were catastrophic and devastating to the home.
We were able to remove the rotten box sill and/or rim joist in sections and replace the deteriorated floor joist members.
However, it is a very good lesson -
be absolutely sure to hire someone who understands construction to work on your home!