EPDM Roofing Calculator

EPDM Patching & Repair

Even though rubber roofs made from EPDM are highly durable and long-lasting, they’re not imperfect. Like any roofing material, EPDM can be impacted by weather damage, wear and tear over time and even punctures. But thankfully, EPDM is really easy to repair and inexpensive, too – if you promptly address any issues with your rubber roof. Below, we’ll explain how to repair your EPDM rubber roof and outline the necessary products and tools to do the job correctly.

SHOP EPDM

Common rubber roof repairs include:

  • Punctures and tears: Depending on the size and severity of the damage, you could use an EPDM rubber patch kit, rubber roof seam tape (for smaller tears) or an adhesive or sealant.
  • Seam failures: We highly recommend some EPDM seam tape for a watertight bond to reinforce the seams when the sealant between the two sheets has degraded. Works well for large seam failures.
  • Shrinkage: If the EPDM has shrunk over time, pulling away from the edges or causing stress points, you’re best off using EPDM cover strips, repair tape, flashing tape, patch kits, or adhesive sealants. All these products will address shrinkage-related problems by reinforcing and sealing the membrane.

Essential tools and materials you’ll need

If you plan to repair your rubber roof yourself and to do it effectively, we recommend the following tools and materials:

Steps to repair your EPDM roof

  • Inspect the damage and identify any punctures, tears or seam failures.
  • Clean and prepare the surface, sweeping any dirt, debris, or loose materials away from the damaged area. To help the patch adhere correctly, it is also recommended that you use a brush and cleaning solution to remove any contaminants. Please allow the area to dry completely first.
  • Prepare your repair for a patch. Typically, cut a patch that extends a minimum of 50mm beyond the damaged area on all sides to ensure adequate coverage.
  • Apply the adhesive to the patch and damaged roof area, allowing it first to become tacky.
  • Attach the patch by carefully placing it over the damaged area, ensuring it’s centre. Press down.
  • Run the rubber roller over the patch and remove air bubbles, ensuring strong adhesion. Pay attention to the patch’s edges to ensure it is securely bonded to the membrane.
  • Seal the edges for added protection, preventing water infiltration and extending the life of the repair. Inspect the repair and ensure it is watertight (lifting or gaps mean it’s not).
  • Regular inspections should be conducted to prevent future damage, and the roof should be cleaned regularly.