Commercial roofing offers several roofing systems with different benefits. Multiple asphalt, coal-tar felts, and bitumen layers comprise Built-Up Roofing (BUR), a conventional technology. In contrast, single-ply roofing uses single layers of membrane material like EPDM, TPO, or PVC, providing flexibility and energy efficiency. Durability, endurance, and severe weather resistance make ... https://coverallroofingca.wordpress.com/2024/12/02/introduction-to-commercial-roofing/