There are minimum 5 steps to take before waterproofing clean the substrate; examine the surfaces to be waterproofed; prepare the surfaces; check and renovate the joints and the wells; proceed to the waterproofing of joints and drains. Is waterproofing permanent? While basic waterproofing membranes should last at least ten years, they can last much longer given the right choice and circumstances. Conversely, poor quality waterproofing will rarely last the distance. How many methods are of