E-Curb 4″ Roof Pipe Boot – EPDM Sealing System

The E-Curb 4″ Roof Pipe Boot from Chem Link is a premium roof penetration seal designed to replace traditional metal pitch pans with a durable, UV-resistant EPDM solution. Engineered for built-up roofing (B.U.R.) systems—including granulated modified bitumen, asphalt, and coal tar—this slip-fit curb eliminates the need for mechanical flashing or complex installation. Simply position, pour the included M-1 Structural Adhesive (sold separately), and secure in under 15 minutes—no tools or additional flashing required.

Built to withstand extreme temperatures from -40°F to 200°F, the E-Curb remains flexible and resistant to cracking, rust, or tearing, even under prolonged UV exposure. Available in multiple sizes (3″, 4″, 5″, 6″, 9″), this system is ideal for HVAC, solar, and plumbing penetrations. Made in the U.S.A., it combines lightweight design with superior weatherproofing for long-lasting performance.