Repairing Rubble Foundations
It is never a good idea to do an interior membrane on a rubble foundation wall or poured wall. The interior membrane will guard the interior living space from the moisture coming through the porous concrete but the dampness trapped in the concrete through the winter months will freeze and the concrete can weaken and even crumble over time. The best waterproofing solution is the exterior repair requires excavating along the outside of the leaking wall or structure exposing the wall from the top down to the footing.
Repairing from the Outside – Membranes
This type of repair requires excavating along the outside of the leaking wall or structure exposing the wall from the top down to the footing. A modern 4-inch perforated weeping tile is installed. After the wall has been cleaned and repaired, an asphalt based rubberized coating is applied the a waterproof membrane over that to cover the entire wall. The trench is backfilled with drainage stone. This system will prevent water from being in contact with the wall, and will solve the problem permanently.