Is Waterproofing Really Necessary? Yes. Waterproofing is one of the most important parts of home construction, especially in wet and exposed areas. Many homeowners focus on tiles, paint, cabinets, and fixtures, but forget what protects the structure underneath. Bathrooms, balconies, roof decks, kitchens, laundry areas, and other wet spaces need proper waterproofing before finishing works begin. Skipping waterproofing may lead to leaks, stains, mold, damaged ceilings, damaged