Flat Roof Systems

Understanding Different Flat Roof Systems for Commercial Buildings

What are the common types of flat roof systems used on commercial buildings? Commercial buildings typically use a few common types of flat roof systems, including single-ply membranes like EPDM, TPO, and PVC, built-up roofs (BUR), and modified bitumen roofs. Each type has its own makeup and common issues.

What You See When Your Flat Roof Has Problems

You might see water stains on your ceiling, especially after it rains. There could be puddles on the roof that don't dry out. You might also notice cracks, blisters, or tears in the roof material itself. If your energy bills are going up, your old roof could be letting too much heat in or out. These are all signs your flat roof system might be failing.

What Happens if You Ignore a Failing Flat Roof

Ignoring these symptoms can lead to bigger, more expensive problems. Small leaks can turn into major water damage, affecting insulation, structural components, and even electrical systems. This can lead to mold growth and unsafe conditions inside your building. Water trapped under the roof membrane can freeze and expand, causing more damage. If you wait too long, your roof might be too far gone for restoration and will need a full tear-off and replacement, which costs a lot more money and causes more disruption.

How We Can Restore and Protect Your Flat Roof System

No matter what type of flat roof you have—EPDM, TPO, PVC, BUR, or modified bitumen—a Conklin-trained contractor can often restore it with a coating system. This usually involves cleaning, repairing, and then applying a new, seamless layer over your existing roof. Here’s how we generally approach it:

1. Inspection and Assessment: First, a Conklin-trained contractor will come out to your property. They'll walk your roof, looking for soft spots, damaged areas, and wet insulation. They'll figure out what kind of roof you have and what condition it's in. If the roof deck is failing or too much insulation is wet, a coating might not be the right fit, and we’ll tell you that upfront.
2. Repairs and Preparation: We start by cleaning the entire roof surface to make sure the coatings stick properly. We'll repair any cracks, holes, or weak seams. Any wet insulation will be cut out and replaced with dry material. This is a critical step to ensure the new coating performs well.
3. Priming (if needed): Depending on your existing roof type and its condition, we might apply a primer. This helps the base coat bond securely to your old roof.
4. Base Coat Application: We then apply the first layer of our acrylic roof coating system. This creates a strong, flexible foundation over your entire roof.
5. Fabric Reinforcement (for seams and critical areas): For many systems, especially over seams and around penetrations, we embed a tough, flexible fabric into the wet base coat. This adds extra strength and helps prevent future leaks.
6. Top Coat Application: Finally, we apply one or two more layers of the highly reflective top coat. This is where the roof gets its seamless, waterproof, and energy-saving properties. Our Conklin roof coatings are designed to expand and contract with your building, protecting against the elements for many years.

This process creates a seamless, durable, and reflective membrane that protects your building, stops leaks, and can significantly lower your cooling costs. It's often much less expensive and disruptive than a full roof replacement. For flat roof coating, this is a proven method.

Frequently Asked Questions

What types of flat roofs can you restore with a coating?

We can restore most common commercial flat roof types, including EPDM, TPO, PVC, Built-Up Roof (BUR), and Modified Bitumen systems. The specific approach varies depending on the existing roof material and its condition.

How long does a coated flat roof last?

A properly installed Conklin roof coating system can add many years, often 18-20 years, to the life of your existing roof. Conklin offers material warranties on their products that extend for the length of the system. This can often be renewed with additional coating layers later on.

Is a roof coating system more affordable than a full replacement?

In most cases, yes. A commercial roof coating system typically costs less than half the price of a full roof tear-off and replacement. It also avoids the disruption and waste of sending your old roof to a landfill. It's a key part of commercial roof restoration.

If your commercial flat roof is leaking or showing signs of wear, don't wait until it's too late. Contact a Conklin-trained contractor today for an inspection and a free estimate. We’ll help you understand your options and find the best solution for your building. Call us at (309) 303-3128 or visit our contact page to get started.