All the structures of a building, whether external (balconies and terraces) or internal (bathrooms and kitchens…) must be protected from water infiltration to increase their durability. The liquid waterproofing cement sheaths offer a solution to this problem. They have high resistance to atmospheric conditions and UV rays, and are easy to lay as there are no joints and overlaps, i.e. discontinuities that are often critical if not properly waterproofed. They have excellent adhesion to the substrate and good compatibility with cement adhesives and therefore suitable for a wide array of operating conditions, especially in outdoor environments.