My EPDM Chimney Roofing Membrane Slipped Off The Brick Wall And Caused A Roof Leak. How Should I Repair It? What Materials And Tools Will Be Required?

epdm roofing membrane

Firstly, attaching the EPDM roofing membrane directly to a brick face wall is inappropriate. As the brick and mortar are porous, the water will eventually infiltrate it causing dampness. Separating the glued EPDM from the brick over the seasons, leading to your roof repair.

To repair it, pull the EPDM roofing membrane back from the wall. Apply a plywood sheath of 3/8″ to the brick wall by drilling or pinning it. Next glue the plywood and the EPDM roofing membrane, and reattach the membrane 2″ above the new sheathing. Terminate with a water cut-off and apply a gum lip flashing over the EPDM membrane. Now covered the woodwork, and caulk well with a Polyurethane Sealant.

It’s common for roofing contractors to install double gum lip flashing. As it prevents leaks when the rain soaks the brickwork.

Lastly, the membrane termination bar in the photo is not a good final seal. As it’s only good for holding the membrane up, allow the new bonding adhesive and plywood to take its place.

Share on facebook
Share on linkedin
Share on twitter
Share on whatsapp


Your email address will not be published. Required fields are marked *

Derek Lindsay

Derek has been a part of the Roofing Industry for 20+ years. His experience in the field enables him to write insightful and informative content on Roofing and everything related to Roofing.