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How to Fix a Tear in an EPDM Roof

Ethylene propylene diene monomer (EPDM) roofing is more commonly known as rubber roofing. It is a rubber-like product that comes in a thin sheet, often in large rolls. The EPDM roofing unrolls over the surface of structure and is held in place via adhesive. Over time or due to falling objects, holes can develop in the material, allowing water leaks. Repairing the EPDM holes requires that you apply a patch held in place with rubber sealant.

Things You'll Need

  • Cloth
  • EPDM patch with adhesive
  • Scrubber sponge
  • Seam roller
  • Rubbing alcohol (optional)
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    • 1

      Wait for a period when no rain is expected for at least three days to prevent the water from damaging the EPDM repair patch.

    • 2

      Saturate a rag with water and wring it out to remove most of the moisture. Wipe the surface of the EPDM thoroughly to remove all dirt and grime from it, which will interfere with the patching process. Clean an area at least 6 inches around the perimeter of the tear and wait for it to dry completely before proceeding.

    • 3

      Open a EPDM adhesive, also called primer, which comes with the patch and pour 1 to 2 tsp. onto scrubber sponge. Apply the primer to the torn areas using circular motions and extending it 6 inches beyond the tear.

    • 4

      Locate the EPDM patch and peel off the protective backing from it. Hold the patch over the torn area until it is centered and then press it down onto the roof. Place your hands in the center of the patch and smooth them out to the edges to remove air pockets.

    • 5

      Place a seam roller on top of the patch and roll the entire surface to ensure complete contact with the underlying adhesive.