The internal waterproofing system is used for many reasons, the area is not accessible from the exterior foundation wall. If there is not a budget to waterproof the foundation on the exterior, it is cost efficient for an unfinished living area.
Interior Waterproofing Procedures:
Once the membrane and gravel are installed it will allow any water from above grade or below grade to drain in to the weeping tile and into the discharge source.
Concrete is removed and the trench is dug out to accommodate a 4 inch perforated weeping tile with filter screening.
Then a dimpled sheet of drainage membrane (Delta MS) is installed on the interior of the basement wall up to grade level.
A new layer of concrete is installed over the trench with a trowel finish, matching the existing cement floor level.
The concrete floor is broken along the perimeter of the foundation wall approx. 10” out from the basement wall.
The weeping tile is installed and be connected to a discharge source, such as a floor drain or a sump pump.
Once completed, you are provided with a receipt and fully transferable Life Time Warranty certificate.
A layer of ¾ clear gravel is installed over the weeping tile to achieve maximum drainage to the tile.