Common Commercial Roofing Problems and How to Fix Them

Commercial roofing systems are vital in protecting business properties from the elements and ensuring the safety of the occupants. However, various issues can arise over time, compromising the roof's effectiveness and leading to costly repairs if not addressed promptly.

Understanding the common problems that affect commercial roofs and knowing how to fix them can save building owners significant time and money. In this article, we’ll explore some of the most common commercial roofing problems, such as leaks, ponding water, membrane damage, issues with flashing, and roof shrinkage. 

Whether you're dealing with a flat or sloped roof, these practical tips will help you maintain the integrity of your commercial roofing system. From identifying early signs of damage to implementing preventative measures, we'll cover everything you need to know to keep your commercial roof in top condition!

What Causes Roof Leaks in Commercial Buildings and How to Fix Them?

Roof leaks are among the most common issues faced by commercial buildings. These leaks can be caused by various factors, including poor installation, aging roofing materials, or damage from severe weather conditions. When water penetrates the roof membrane, it can lead to significant damage to the building's structure, interior, and even its contents. Early detection and repair are crucial to preventing more severe issues such as mold growth, insulation damage, and electrical hazards.

To fix roof leaks in commercial buildings, it’s essential first to identify the source of the leak. This may involve a thorough inspection of the roof surface, flashings, penetrations, and drainage systems. Once the source is located, repairs can range from simple patching to more extensive restoration work, depending on the severity of the damage. Using high-quality materials and ensuring proper installation is key to a long-lasting repair. Regular maintenance and inspections are also critical to prevent future leaks and prolong the life of the roof.

If you are dealing with persistent roof leaks, consider hiring a professional roofing contractor with experience in commercial roofing systems. They can assess the condition of your roof, provide expert repairs, and recommend preventative measures to avoid future problems. 

How to Address Ponding Water on Flat Commercial Roofs?

Ponding water is a common problem on flat commercial roofs, where water collects and remains on the roof surface for more than 48 hours after a rainstorm. This issue can lead to structural damage, increased weight on the roof, and accelerated deterioration of roofing materials. Ponding water can also cause leaks, particularly if the roof has any existing vulnerabilities or if the drainage system is not functioning correctly.

To address ponding water, the first step is to ensure that the roof’s drainage system is clear and functioning efficiently. This may involve cleaning out gutters, downspouts, and internal drains, as well as checking for any blockages that could impede water flow. In some cases, re-sloping or adding additional drains may be necessary to promote proper water runoff. For roofs with persistent ponding issues, installing tapered insulation or a new membrane designed to handle standing water might be the best solution.

What are the Signs of Roof Membrane Damage, and how can it be Repaired?

The roof membrane is a critical component of a commercial roofing system, providing a waterproof barrier that protects the building from moisture intrusion. Over time, the membrane can become damaged due to exposure to the elements, foot traffic, or mechanical equipment. Common signs of roof membrane damage include blistering, cracking, punctures, and seam separation. These issues can lead to leaks and further deterioration if not addressed promptly.

Repairing roof membrane damage typically involves cleaning the affected area and applying a patch or new membrane material to restore the waterproof barrier. In cases where the damage is extensive, it may be necessary to replace entire sections of the membrane. It’s important to use compatible materials and follow the manufacturer’s guidelines to ensure a durable repair. Regular inspections and maintenance are essential to catch membrane damage early and prevent it from compromising the roof’s performance.

How to Prevent and Fix Issues with Commercial Roof Flashing?

Roof flashing is a vital element of a commercial roofing system, designed to prevent water from seeping into joints, seams, and roof penetrations. However, flashing can become damaged or loose over time, leading to leaks and other problems. Common issues with roof flashing include rusting, improper installation, and displacement due to wind or thermal expansion. Addressing these problems quickly is essential to maintaining the roof’s integrity.

To prevent issues with roof flashing, it’s important to ensure that the flashing is installed correctly and that it’s made from durable, weather-resistant materials. Regular inspections should be conducted to check for signs of wear, rust, or displacement. If any problems are identified, repairs should be made immediately, such as resecuring loose flashing, replacing damaged sections, or applying sealant to reinforce the flashing’s waterproof capabilities.

Professional roofing contractors, like Isthmus Roofing, have the expertise to properly install and maintain roof flashing, helping to prevent leaks and extend the life of your commercial roof. Regular maintenance and prompt repairs are key to avoiding costly damage caused by faulty flashing.

What Are the Solutions for Dealing with Roof Shrinkage in Commercial Buildings?

Roof shrinkage is a condition where the roofing material, particularly single-ply membranes like EPDM, contracts over time due to weathering, UV exposure, or improper installation. This shrinkage can lead to issues such as pulled seams, cracks, and stress on flashing, which can result in leaks and structural damage. Recognizing the signs of roof shrinkage early on is crucial to preventing extensive damage.

To address roof shrinkage, the first step is to inspect the roof for any areas where the material has pulled away from seams, edges, or penetrations. In some cases, the affected areas can be repaired by patching or re-adhering the membrane. However, if the shrinkage is severe, a more extensive solution, such as replacing the affected sections of the membrane or installing a new roofing system, may be necessary. Using high-quality materials designed to resist shrinkage and ensuring proper installation are essential to preventing future problems.

Isthmus Roofing provides comprehensive solutions for roof shrinkage, from inspections and repairs to complete roofing system replacements. Our team of experienced professionals can help you determine the best course of action to protect your commercial property from the effects of roof shrinkage.

Trust Isthmus Roofing for All Your Commercial Roofing Needs!

Maintaining a commercial roof requires vigilance and the expertise of a professional roofing contractor. Isthmus Roofing, based in Fitchburg, WI, offers a range of services tailored to address common commercial roofing problems, from leaks and ponding water to membrane damage, flashing issues, and roof shrinkage.

With over 25 years of experience, we are equipped to handle all your roofing needs, ensuring your property remains protected and your roof performs at its best! Contact Isthmus Roofing today by leaving us a message online or call us directly at 608-949-0533.