How To Patch Roof Membrane

Ensure that it extends 2 inches beyond the.

How to patch roof membrane.

Using a pressure sensitive patch. Roll the patch in multiple directions with a roller to remove any air bubbles and fully bond the patch. Look for seam separation if the installer didn t know how to use a torch properly to fuse the seams together then the. If there is evidence that the.

How to repair a flat roof membrane 1. Spider cracks in the surface the entire surface will have these fine cracks but it could be just in the beginning. Here insulation was used as a kind of underlayment. Pull off the old rubber roofing from the cut area.

Scrub the repair area. Trim the rubber patch to extend. Clean the membrane where the patch is. Unscrew and remove the large metal washers holding down the fiberboard substrate.

Decide on the part to be cut away. 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. Remove damaged membrane and insulation. Replace insulation if needed with like material.

Remove old caulking material with a scraper. Rinse squeegee or wipe with clean rag. Remove the paper or film backing from the patch apply the patch to the roof membrane and press it down firmly. Apply a thick even coat of edpm primer to the area using a paintbrush.

Sweep the area free of dirt and debris using a push broom.