Waterproofing or waterproofing is defined as the process by which a body becomes impermeable to water by the application of certain waterproofing materials. These materials have the property of being impermeable to water and not affected by it under certain circumstances. Such materials can be used in a humid environment, even under water for specific depths. Waterproofing materials vary and are classified into the following categories: Asphalt / Cementitious Base / Acrylic / Acrylic - Polyurethane (Hybrid) / Polyurethane