How To Repair Epdm Roofing

November 30, 2025

2 min read

To repair EPDM roofing, you need to find the leak, clean the area, and seal it with special repair materials made for rubber roofs. EPDM is a rubber membrane that lasts a long time, but it can crack, tear, or develop holes. Most EPDM roofs last 40 to 50 years, but they need care to stay in good shape. According to industry data, 33% of homeowners replace roofs due to leaking, and quick repairs can help you avoid full replacement costs. This guide shows you how to fix EPDM roof problems yourself or know when to call a pro.

What Is Epdm Roofing?

EPDM stands for ethylene propylene diene monomer. It is a synthetic rubber material used on flat or low-slope roofs. The material is dark, flexible, and strong against weather and UV rays.

EPDM roofs are popular because they are tough and affordable. According to This Old House (2025), 91% of commercial roofers use single-ply roofing systems, which include EPDM as one of the main options. EPDM costs between $5.50 and $7.50 per square foot for installation.

Related articles:

How to Find and Fix a Leak

First, locate the leak by looking for water stains on your ceiling or attic. Go to your roof with binoculars or climb up safely. Look for cracks, holes, seams that opened, or pooled water.

Once you find the damage, dry the area completely. Clean away dirt and debris with a wire brush. Use a mild soap and water if needed. Let it dry for at least one hour before you apply any repair material.

For small holes or tears, use an EPDM patch kit. Cut a square patch at least 6 inches larger than the damage on all sides. Apply EPDM adhesive to the back of the patch. Press it down firmly and let the adhesive cure for the time listed on the product.

Repair Materials You Need

Different damage types need different fixes. Here are the most common repair materials:

Damage Type	Repair Material	Cost Range
Small tears or holes	EPDM patch kit	$15 to $40
Leaking seams	Seam tape or liquid sealant	$10 to $30
Cracks	EPDM rubber cement and patch	$20 to $50
Puncture holes	Rubber roof repair kit	$25 to $60

When to Call a Professional

DIY repairs work for small damage. However, call a roofer if the leak is in a seam, the damage is larger than 6 inches, or you have multiple leaks. According to This Old House (2025), the average roof repair cost ranges from $392 to $1,913, while full replacement averages $9,526.

Professional roofers can spot hidden damage you might miss. They have tools to test EPDM for weak spots. According to RubyHome (2025), roof installation costs range from $4 to $40 per square foot depending on the material and complexity. If your EPDM roof is over 20 years old, ask a pro to inspect it fully before attempting repairs.

Regular maintenance helps EPDM roofs last longer. Clean gutters twice yearly and remove debris. Check seams and edges after storms. These simple steps prevent small problems from becoming expensive repairs.

Related articles:

Work with a professional roofing company to protect your property with quality roofing solutions.