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EPDM Roof Repair: Fast Solutions For Common Issues

Posted on : May 29, 2023

EPDM Roof Repair: Fast Solutions For Common Issues

Are you the proud owner of an EPDM flat roof? Then you know how great they can be. They are cost-effective, durable, and require minimal maintenance. But like any roofing system, over time you may notice some common issues. 

That’s why we’re here—to give you a comprehensive guide on EPDM roof repair. We’ll discuss the most common problems associated with EPDM flat roofs and provide practical solutions for quick repairs. 

Our professional and experienced team of roofing experts have you covered. We’ve got all the tips and advice you need to keep your EPDM roof in top shape. So, let’s get started and explore the best ways to repair and maintain your EPDM roof.

1. Improper Installation

Improper Installation of flat roof


One of the primary reasons for EPDM flat roof repair needs is improper installation. This can be due to untrained or inexperienced roofing contractors or inadequate preparation of the roof surface. Some common installation mistakes include:

  • Not cleaning, drying, and preparing the roof surface properly
  • Using an incompatible substrate or not adding a protective barrier
  • Applying the EPDM membrane when the surface is wet or damp
  • Not adhering the membrane correctly to corners, walls, drains, and pipes


To avoid EPDM roof leak repair requirements due to poor installation, make sure to hire a reputable and experienced roofing contractor. They should be fully trained in installing EPDM flat roofs and be familiar with the best practices for ensuring a long-lasting and watertight roofing system. If you suspect that your roof has been installed improperly, it's best to consult with a professional roofer for an assessment and possible repair options.

2. Shrinkage



Shrinkage is another common issue that may require EPDM flat roof repair. Over time, EPDM rubber can draw back due to factors such as aging, poor maintenance, and exposure to direct sunlight. This shrinkage can cause the membrane to pull away from parapet walls, flashings, and other areas, creating gaps through which water can penetrate and cause leaks.


There are two possible solutions here. To begin, you can reflash the affected areas, which involves removing the old flashing and installing new material that is properly bonded to the membrane. If the shrinkage is more extensive, re-sealing may be necessary. In this case, you can remove the old product and install a new sealant that is compatible with the EPDM membrane. Either way, you can rest assured that your roof will be fixed quickly and efficiently.

3. Leaks and Moisture

Leaks and Moisture on flat roof


Leaks are a common problem for EPDM flat roofs, especially if they haven't been adequately maintained or were installed poorly. Heavy rainfall can exacerbate existing issues and lead to more severe gaps. Some possible causes of leaks in EPDM roofs include:

  • Improper installation
  • Shrinkage
  • Damaged or worn seams


If you notice a leak, it's essential to identify the source as soon as possible and consult with a professional roofer for an inspection and repair. EPDM roof leak repair can involve patching damaged areas, reinforcing seams, or even replacing sections of the membrane if necessary.

4. Puddles of Water

Puddles of Water


Pooling water on your EPDM flat roof is another common issue that can lead to more significant problems if left unaddressed. This can occur due to changes in the structure of the roof as your building settles over time or inadequate drainage systems.


To prevent this, you can apply a roofing patch or increase insulation. If your roof doesn't have enough drain lines, you can easily install more. To further divert water away from roof protrusions, consider installing roof crickets. Finally, if your roof is not properly pitched, you can re-pitch it by adding more insulation or installing a new roof membrane. 

5. Mold and Mildew Growth


Molds and mildews can be a concern for EPDM flat roofs, as they can cause unsightly stains and be difficult to remove. While EPDM rubber does not contain any materials that promote mold or mildew growth, prolonged exposure to moisture and varying weather conditions can create an environment conducive to their development.


If you notice mold or mildew on your EPDM flat roof, use a non-abrasive cleaner and a soft-medium brush to clean the affected areas. Regular cleaning and maintenance can help prevent the growth of mold and mildew and keep your roof looking its best.

6. Damaged or Worn Seams

Damaged or Worn Seams


Over time, the seams of your EPDM flat roof can become damaged or worn. This can happen due to regular wear and tear, improper installation, or exposure to harsh weather conditions. Damaged seams can allow water to infiltrate your roof and cause leaks.


Depending on the severity of the damage, you may be able to repair the seams yourself using a roofing patch or sealant. If the damage is more extensive, you may need to replace the seams with the help of a professional roofing contractor. In the most severe cases, the best option may be to install a new roof so you can ensure the best protection from leaks. Whatever the case, our team of professionals is always here to help you find the best solution for your needs.

7. Bubbling

Bubbling or blistering


Bubbling or blistering can occur on EPDM flat roofs when air or moisture becomes trapped between the membrane and the roof surface. This can be due to improper installation, inadequate roof surface preparation, or using an incompatible substrate.


If you’re noticing some small bubbles on your roof, you’re in luck – you may be able to repair them yourself with a roofing patch or sealant. However, if the bubbles are larger or more numerous, it’s best to call a professional roofing contractor for EPDM roof repair services. 

8. Punctures and Tears


Punctures and tears can occur on EPDM flat roofs due to impacts from falling debris, foot traffic, or other external factors. These damages can compromise the integrity of the roof and lead to leaks.


Regular roof inspections can help identify punctures and tears before they become more significant problems. A professional roofer can patch or repair damaged areas to maintain a watertight roofing system.

9. Flashing Issues

flat roof Flashing


Flashings are crucial components of a flat roof that help seal and protect transition areas, such as where the roof meets walls or chimneys. Over time, flashings can become damaged, corroded, or poorly adhered, leading to leaks.


A professional roofer can inspect and replace damaged or worn flashings as needed, ensuring a watertight seal around all transition areas of your EPDM flat roof.

10. Maintenance and Inspection

Regular maintenance and inspections are vital in preventing many common EPDM flat roof repair issues. This should include:

  • Cleaning debris and dirt from the roof surface
  • Inspecting for signs of damage or wear, such as punctures, tears, or worn seams
  • Checking flashings and other transition areas for proper adhesion and seal
  • Assessing drainage systems and addressing any pooling water issues

It is recommended that you have your roof inspected at least twice a year, ideally in spring and fall, to ensure that any problems are detected and addressed promptly.


We hope this blog post has provided you with some useful information about common EPDM roof issues and how to fix them. While EPDM roofs are generally durable and long-lasting, it’s important to keep an eye out for any problems that may arise. Regular roof inspections and maintenance will help to ensure that your roof stays in good condition and lasts for years to come.

So, if you have an EPDM roof, don’t forget to follow these tips shared by our team to keep it in good shape. And if you’re ever in doubt, call a qualified roofing contractor in your area for assistance. They can provide you with the professional advice and expertise you need to keep your roof looking great.

Looking for EPDM Roof Repair Services in Pittsburgh?

When your EPDM roof needs repair, you need a team you can trust. McClellands Contracting & Roofing LLC has been serving the Pittsburgh area for over 20 years, and we have the experience and expertise to get the job done right.

Our team of professionals will inspect your roof and recommend the best course of action for repair. We use only the highest quality materials and workmanship, and we offer a satisfaction guarantee on all of our work.

We understand that your roof is an important investment, and we are committed to providing you with the best possible service. Contact us today to schedule a consultation and learn more about our EPDM roof repair services at (412) 353-5660.

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