EPDM rubber is produced from the copolymerization of ethylene and propylene with small amounts of dienes. It is one of the most widely used synthetic rubbers for roof waterproofing due to its ease of application, availability, and flexibility. EPDM membrane systems have advanced significantly, especially with the use of application tapes that simplify seam treatment and speed up installation. When properly installed, the system offers high performance and a service life that can reach up to 50 years.