Remove old caulking material with a scraper.
How to patch roof membrane.
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.
Unscrew and remove the large metal washers holding down the fiberboard substrate.
Trim the rubber patch to extend.
Decide on the part to be cut away.
Scrub the repair area.
Replace insulation if needed with like material.
Heat weld the patch in place.
Using a pressure sensitive patch.
Clean the membrane where the patch is.
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 repair a flat roof membrane 1.
Ensure that it extends 2 inches beyond the.
Sweep the area free of dirt and debris using a push broom.
Remove damaged membrane and insulation.
Here insulation was used as a kind of underlayment.
Remove the paper or film backing from the patch apply the patch to the roof membrane and press it down firmly.
Roll the patch in multiple directions with a roller to remove any air bubbles and fully bond the patch.
Rinse squeegee or wipe with clean rag.
Pull off the old rubber roofing from the cut area.