Liquid Roof Coatings are Specially Designed for RVs. Liquid roof coatings are aftermarket products designed to extend roof life. Liquid Roof seals roof leaks, or merely provide a heat reflective or aesthetic roof coatings function over existing roof surfaces. Liquid Roof forms a 100% chemically-cured seamless White membrane every bit as solid and attractive as factory-installed sheet rubber. Liquid Roof's simple one-coat application by brush or roller saves you time and money, sealing and protecting your RV from water damage. Liquid Rubber membrane protective coatings are manufactured implementing the most up-to-date achievements in chemistry. They are based on environmentally friendly, reliable and durable high quality materials that meet and exceed North American and World-wide standards. Liquid Rubber is a protective coating. Liquid Rubber is based on environment friendly, reliable and durable high quality materials.