How To Patch Roof Membrane

Trim the rubber patch to extend.

How to patch roof membrane.

Unscrew and remove the large metal washers holding down the fiberboard substrate. Ensure that it extends 2 inches beyond the. Remove the paper or film backing from the patch apply the patch to the roof membrane and press it down firmly. How to repair a flat roof membrane 1.

Rinse squeegee or wipe with clean rag. Look for seam separation if the installer didn t know how to use a torch properly to fuse the seams together then the. Remove damaged membrane and insulation. 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. Spider cracks in the surface the entire surface will have these fine cracks but it could be just in the beginning. Replace insulation if needed with like material. Decide on the part to be cut away.

Here insulation was used as a kind of underlayment. Roll the patch in multiple directions with a roller to remove any air bubbles and fully bond the patch. Using a pressure sensitive patch. Remove old caulking material with a scraper.

Find the injury in the single ply membrane. Sweep the area free of dirt and debris using a push broom. Clean the membrane where the patch is. 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.