Since 1955, Gaco Western has manufactured exceptional waterproofing and insulating products for commercial, industrial and residential applications. Today, our products cover millions of square feet of buildings and we have earned a trusted reputation in the construction industry. For any roof large or small, flat or sloped, GacoFlex Silicone Roof Coating Systems provide a proven, guaranteed solution for renewing a weathered roof. They can be applied to virtually any existing roofing surface to create a seamless membrane that protects against permanent ponding water, ultraviolet light and severe weather.  The key advantages of using a silicone roofing system: ​Silicone is permanent and will not degrade, chalk or crack under harsh UV rays. Silicone forms a seamless membrane that withstands permanent ponding water without softening. Silicone creates a smooth surface that offers excellent resistance to mold, mildew and staining.