EPDM (ethylene propylene diene monomer) roofing is one of the most reliable options for flat and low-slope commercial buildings. Its rubber membrane is known for flexibility, weather resistance, and longevity. But like any roofing system, EPDM roofs can develop problems over time.
At Jewett Roofing, we’ve been repairing EPDM systems across the Midwest for decades. Here are our top tips for identifying, preventing, and repairing EPDM roof issues—straight from the pros.
1. Keep an Eye on Seams and Flashing
Seams are one of the most vulnerable points on any EPDM roof. Over time, adhesive can break down or seams can pull apart due to movement and weather exposure. Flashing around vents, skylights, or walls can also separate.
Pro Tip: Routine inspections and quick resealing with EPDM seam tape or flashing cement can prevent major leaks.
2. Check for Punctures and Tears
EPDM is durable but not immune to punctures from foot traffic, tools, or falling debris. Even a small tear can let water in.
Pro Tip: For small holes or tears, clean the area, prime it, and apply a patch using EPDM-compatible materials. Larger areas may require a full membrane replacement.
3. Watch for Shrinking and Bridging
Older EPDM roofs can shrink or pull away from edges, especially if installed without sufficient ballast or adhesive. This can lead to bridging (membrane lifting) or stress at seams and flashings.
Pro Tip: Early signs of shrinkage can be corrected with re-attachment or reinforcement strips. Severe shrinkage may need section replacement.
4. Address Ponding Water Promptly
Although EPDM is waterproof, standing water can degrade seams and adhesives over time.
Pro Tip: Ensure your roof has proper drainage. Consider adding tapered insulation or correcting low spots to move water off the surface.
5. Clean the Roof Regularly
Leaves, dirt, and debris can clog drains and hide damage. A clean EPDM roof is easier to inspect and maintain.
Pro Tip: Schedule bi-annual cleanings, especially in the spring and fall, to remove buildup and check for problems.
When to Call in the Pros
Some EPDM repairs are straightforward, but complex issues—like wide-scale seam failure or shrinkage—require professional tools and experience. That’s where Jewett Roofing comes in.
We offer expert EPDM inspections, targeted repairs, and long-term maintenance plans that protect your investment and extend the life of your roof.
Need Help with Your EPDM Roof?
Whether you’re dealing with a small puncture or a major repair, our team is ready to help. Contact Jewett Roofing today to schedule your free EPDM roof assessment.
