Concrete Foundation Wall Concerns
We're in the process of building a home in Montana and the contractor underestimated the grade in front of the house, and as a result had to pour an additional two feet of concrete on top of the already poured wall to get the entry to the porch correct. Rebar was put into the previously poured wall before the forms were put back on and the extra 2' was poured. Even though an engineer and inspector approved this, my concern is that water could permeate through the seam. There will be a foot or two of dirt covering the seam. The contractor has also offered to put a water-proof membrane over the seam and doesn't seem to think it will be a problem. I would appreciate any well informed thoughts.