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Ridley Roofing Blog

Everything You Need to Know About Flat Roofs: Replacements, Lifespans, and Coatings with Ridley Roofing

4/29/2025

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If you own a home or business with a flat roof in Delaware County, PA, you’ve probably wondered about the best ways to maintain it—or when it might be time for a full replacement. At Ridley Roofing, we get tons of questions about flat roofs, from their lifespan to coating options and replacement needs. Let’s break down the most common concerns in a way that’s easy to understand, so you can keep your flat roof in top shape!

When Should I Consider a Full Flat Roof Replacement?
Flat roofs are popular for commercial buildings and modern homes, but they don’t last forever. If your flat roof is leaking frequently, showing signs of pooling water, or has extensive damage—like cracked or blistering membranes—it might be time for a full flat roof replacement. In Delaware County, PA, where heavy rain and snow can take a toll, we often see flat roofs needing replacement after significant wear. At Ridley Roofing, we specialize in flat roof replacements, using high-quality materials like TPO and EPDM to ensure your new roof is durable and weather-resistant. We’ll assess your roof with a free inspection (including our drone camera technology!) to determine if a replacement is the best solution for you.

What’s the Typical Lifespan of a Flat Roof?
A common question we hear is, “How long does a flat roof last?” The flat roof lifespan depends on the material and maintenance. For instance, a well-maintained TPO or EPDM flat roof can last 20-30 years, while older materials like built-up roofing (BUR) might only last 15-20 years. In Delaware County, PA, flat roofs face challenges from heavy rainfall, snow, and temperature fluctuations, which can shorten their lifespan if not properly cared for. Regular inspections and maintenance—like clearing debris and checking for drainage issues—can extend your flat roof’s life. If your roof is nearing the end of its lifespan, Ridley Roofing can help with a seamless flat roof replacement to keep your property protected.

What Are My Options for Flat Roof Coatings, and How Often Should They Be Applied?
Flat roof coatings are a fantastic way to extend the life of your roof and improve its energy efficiency. They act as a protective layer, shielding your roof from UV rays, water, and wear. At Ridley Roofing, we offer several flat roof coating options, including silicone and acrylic coatings, which are great for reflecting sunlight and reducing cooling costs—a big plus for Delaware County summers! As for how often you should apply flat roof coatings, it depends on the coating type and your roof’s condition. Typically, we recommend reapplying every 5-10 years to maintain optimal protection. Our team can assess your roof and recommend the best coating schedule to keep it in great shape without the need for a full replacement.
One thing to note: some companies use flame or blowtorch-applied methods for flat roof installations or repairs, but at Ridley Roofing, we don’t offer this service due to safety concerns. We prioritize safer, more modern methods to ensure the best results for your flat roof without the risks associated with open flames.

Why Choose Ridley Roofing for Your Flat Roof Needs?
Flat roofs require specialized care, and we’ve got the expertise to handle it all—from full flat roof replacements to routine coatings and inspections. Our team, led by professionals like James, uses advanced tools like drone cameras to inspect every inch of your roof, ensuring accurate estimates and high-quality work. We’re proud to serve Delaware County, PA, with roofing solutions that stand up to the area’s tough weather conditions. Whether you’re dealing with a leaky flat roof or just want to explore coating options, we’re here to help with personalized service and fair pricing.
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Ready to take the next step? We’ve made it easier than ever to get started with our new Book Online feature! You can now schedule your free flat roof inspection and estimate directly from our website at a time that works for you. Visit https://ridleyroofing.setmore.com to book your appointment today, and let’s get your flat roof ready for whatever Delaware County weather throws its way!

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Ridley Roofing
504 Perry St
Ridley Park, Pennsylvania 19078
[email protected]
​610-595-5575

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  • Home
  • Services
    • Roof Replacement and Installation
    • Roof Repair
    • Gutter Installation and Repair
    • Commercial Roofing
    • Siding
  • Roof Options
    • Shingle
    • Metal Roof
    • Flat Roof
  • About
  • Contact
  • Blog