A large EPDM roof can have very different conditions across its surface. Map leaks, previous patches, penetrations, and drainage problems before deciding whether a localized repair is enough.

What to check first

  • Record recurring leak locations and previous repairs.
  • Inspect seams around rooftop equipment and wall transitions.
  • Escalate soft decking, wet insulation, or repeated failures for a fuller assessment.

Choose an EPDM-compatible repair

  1. Confirm that the surface is EPDM

    Check project records or obtain a qualified identification. A black roof may also be asphalt based, and a coating can disguise the original material.

  2. Assess the area under the old patch

    Peeling edges, trapped moisture, or damaged membrane need attention. Do not keep stacking incompatible materials over an uncertain repair.

  3. Use the appropriate system

    Do not apply Turbo Poly Seal directly to EPDM. Review Super Silicone Seal guidance or the membrane manufacturer’s approved EPDM repair method. Prepare and dry the surface completely before application.

Watch the field examples

These archive demonstrations show individual projects. Use the current guidance above and Bergstrom’s published instructions if an older video shows a different product or method. Torch work shown in installation videos is professional work.

Watch Commercial EPDM Roof Repairs: Start with a Condition SurveyOpens on YouTube ↗

From the project archive

EPDM Rubber on Commercial Roofs - EPDM is just over an 1/16th of an inch thick. This makes the rubber roof membrane susceptible to harmful UV rays.
Historical project photo · Flat Roof Doctor

Product reference: Bergstrom Industries’ published knowledge catalog. Follow the latest product label and safety information. Historical project examples are educational and are not a specification for every roof.