Waterproofing helps to seal off areas of a structure that need to be water-resistant. Once waterproofed, water won’t be able to penetrate the area. In most cases, new materials are waterproofed by painting a water-resistant barrier of protection on it. Sometimes o-rings can also be ideal in this sealing process. Before any waterproofing work starts, the contractor will assess the areas that need sealing and revert back to the customer and or manager at HQ.