How To Patch Roof Membrane

Using a pressure sensitive patch.

How to patch roof membrane. If the surface of the existing membrane is badly oxidized it may be possible to enlarge the hole insert the new patch underneath and heat weld to the bottom side of the membrane. Remove old caulking material with a scraper. How to repair a flat roof membrane 1. Replace insulation if needed with like material.

Roll the patch in multiple directions with a roller to remove any air bubbles and fully bond the patch. Pull off the old rubber roofing from the cut area. Rinse squeegee or wipe with clean rag. Apply a thick even coat of edpm primer to the area using a paintbrush.

Trim the rubber patch to extend. Ensure that it extends 2 inches beyond the. Heat weld the patch in place. Spider cracks in the surface the entire surface will have these fine cracks but it could be just in the beginning.

Find the injury in the single ply membrane. Clean the membrane where the patch is. Here insulation was used as a kind of underlayment. Sweep the area free of dirt and debris using a push broom.

If there is evidence that the. Remove the paper or film backing from the patch apply the patch to the roof membrane and press it down firmly. Decide on the part to be cut away. Look for seam separation if the installer didn t know how to use a torch properly to fuse the seams together then the.

Scrub the repair area.