I was wondering what to put directly on the concrete walls if drain tile was installed in the interior and dimpleboard was was run about one foot up the basement wall. This would would obviously cause the foam board to be away from the wall or do I just rest it on the dimpleboard?
We used the same drain board we use on many projects, a dimpled sheet of heavy, semi-rigid plastic that creates a space for water to easily move down through. We faced the dimple side out in this case, toward the block walls, making a 3/8-inch space at the face of the CMU. The ...