How To Patch Roof Membrane

Look for seam separation if the installer didn t know how to use a torch properly to fuse the seams together then the.

How to patch roof membrane.

Scrub the repair area. Remove damaged membrane and insulation. Spider cracks in the surface the entire surface will have these fine cracks but it could be just in the beginning. Using a pressure sensitive patch.

Here insulation was used as a kind of underlayment. Apply a thick even coat of edpm primer to the area using a paintbrush. Unscrew and remove the large metal washers holding down the fiberboard substrate. How to repair a flat roof membrane 1.

Ensure that it extends 2 inches beyond the. 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. Remove old caulking material with a scraper.

Trim the rubber patch to extend. Remove the paper or film backing from the patch apply the patch to the roof membrane and press it down firmly. Pull off the old rubber roofing from the cut area. Rinse squeegee or wipe with clean rag.

Locate the source of the leak on the roof then use a utility knife to slice through the rubber roof around the suspected trouble spot. Heat weld the patch in place. If there is evidence that the. 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.

Decide on the part to be cut away.