How to Fix a Leaking Commercial Roof

If you’re dealing with a leaking commercial roof, you know how crucial it is to find a quick and effective solution. Water damage can wreak havoc on your business, leading to costly repairs and interruptions in your operations. In this article, you’ll discover simple yet powerful tips on how to fix a leaking commercial roof. From identifying the source of the leak to implementing the appropriate repairs, we’ve got you covered. By following these steps, you’ll be able to safeguard your property and ensure a smooth functioning business.

Understanding the Signs of a Leaking Commercial Roof

Recognizing initial signs of leaking

When it comes to a leaking commercial roof, it’s important to recognize the initial signs before the issue becomes bigger and more costly to fix. One common sign is the presence of water stains or discoloration on the ceiling or walls inside the building. These stains may start small but can quickly expand if the leak is not addressed promptly. Another indicator is the presence of mold or mildew, especially in areas where moisture is prevalent. The onset of a musty odor can also be a red flag that there is a leak in the roof.

Impact of weather on leaking

Weather plays a significant role in the occurrence and severity of roof leaks. Heavy rain, snow, or hail can weaken the roof’s protective layers, causing water to seep through. Strong winds can lift or damage roofing materials, creating openings for water to penetrate. Excessive heat can cause roofing materials to expand and contract, leading to cracking and deterioration over time. It’s essential to consider the weather conditions as they can exacerbate existing issues or contribute to new leak development.

Common signs inside the building

Leaking commercial roofs often show signs inside the building that can help identify the source of the problem. Discolored ceiling tiles, sagging ceiling panels, or bubbling paint are all signs of water damage caused by a leak. In some cases, you may even notice water dripping or pooling on the floor. These visible signs indicate that the roof has been compromised and immediate attention is needed to prevent further damage to the interior of the building.

Factors Leading to Commercial Roof Leaks

Aging and general wear and tear

One of the primary factors leading to commercial roof leaks is the natural aging process of the roofing materials. Over time, exposure to the elements, UV radiation, and temperature fluctuations can cause the roof to deteriorate. Aging roofs are more susceptible to leaks as the protective layers become worn and compromised. Additionally, general wear and tear from foot traffic, maintenance work, or debris can weaken the roof’s integrity and create openings for water infiltration.

How to Fix a Leaking Commercial Roof

Poor roof installation

Another factor that can contribute to commercial roof leaks is poor installation. If the roof was not installed properly to begin with, it is more likely to develop problems over time. Improperly sealed seams, incorrectly installed flashings, or inadequate insulation can all lead to water penetration and leaks. It is crucial to hire experienced, reputable roofing contractors who have the necessary expertise and knowledge to install commercial roofs correctly and ensure their longevity.

Faulty or broken flashings

Flashing is a crucial component of any commercial roof, as it helps to seal joints, edges, and other vulnerable areas against water infiltration. However, if the flashings are faulty or broken, they can become a major source of leaks. Over time, flashings can crack, corrode, or become dislodged due to weather exposure or improper installation. Regular inspections and maintenance are essential to identify and repair any issues with the flashings to prevent leaks from occurring.

Ponding water

Ponding water refers to the accumulation of water on a flat or low-slope roof after a rainfall or due to inadequate drainage. This is a common problem in commercial roofs, especially those with improper or clogged drainage systems. When water pools for extended periods on the roof surface, it can lead to deterioration of the roofing materials, eventually resulting in leaks. Proper roof design, regular maintenance, and ensuring proper drainage are essential to prevent ponding water and the associated leaks.

Common Types of Commercial Roofing

Built-up roofing (BUR)

Built-up roofing, also known as BUR, is a traditional and widely-used roofing system for commercial buildings. It consists of multiple layers of bitumen and reinforcement materials, such as fiberglass or polyester, that are alternated and mopped together to create a durable and reliable roof membrane. BUR roofs are known for their longevity and ability to withstand extreme weather conditions. However, over time, BUR roofs can develop leaks due to aging, wear and tear, or failure of the layers to adhere properly.

How to Fix a Leaking Commercial Roof

Thermoset (EPDM) roof membrane

Thermoset roof membranes, commonly referred to as EPDM (ethylene propylene diene monomer), are a popular choice for commercial roofing due to their excellent durability and resistance to UV radiation. EPDM roofs are made of a single-ply rubber material that is mechanically attached or adhered to the roof substrate. While EPDM roofs are known for their longevity, they can still develop leaks over time, especially if the seams are not properly sealed or if the membrane is damaged by foot traffic or sharp objects.

Thermoplastic (PVC & TPO) roof membrane

Thermoplastic roof membranes, such as PVC (polyvinyl chloride) and TPO (thermoplastic olefin), have gained popularity in recent years for their energy efficiency, durability, and ease of installation. These single-ply membranes are heat-welded together to create a seamless and watertight roof surface. However, like other roofing systems, thermoplastic roofs can experience leaks if the seams are not properly heat-welded or if the membrane is damaged by external factors such as falling debris or extreme weather conditions.

Spray polyurethane foam (SPF)

Spray polyurethane foam, also known as SPF, is a unique roofing system that offers excellent insulation, energy efficiency, and resistance to leaks. SPF roofs are created by spraying a liquid mixture of polyurethane foam onto the roof surface, which expands and forms a seamless and waterproof barrier. While SPF roofs are highly durable, they can still develop leaks if the foam is not applied correctly or if the protective top coat is compromised. Regular inspections and maintenance are necessary to identify and address any issues with SPF roofs.

Areas Vulnerable to Leaks in Commercial Roofs

Roof Joints and Seams

Roof joints and seams are common areas of vulnerability where leaks can occur. These areas are where different sections of the roof, such as the edges, corners, or intersections, meet and need to be properly sealed to prevent water infiltration. Over time, the seals can deteriorate, or the seams may become loose or dislodged, creating openings for water to seep through. Regular inspections and maintenance are crucial to ensure that the joints and seams are in good condition and adequately sealed.

How to Fix a Leaking Commercial Roof

Flashing points

Flashing points, such as roof penetrations (vents, skylights, pipes) or edges (parapet walls, chimneys), are critical areas that require special attention to prevent leaks. Flashings are installed to provide an extra layer of protection and ensure a watertight seal around these vulnerable areas. However, if the flashings are faulty, improperly installed, or damaged, they can become points of entry for water. Regular inspections and prompt repairs are necessary to maintain the integrity of the flashings and prevent leaks from occurring.

Roof penetrations

Roof penetrations, such as vents, skylights, or pipes, are areas where openings are made in the roof for various purposes. These penetrations can become potential sources of leaks if they are not properly sealed or if the flashing around them is damaged. Even small gaps or cracks can allow water to seep through and infiltrate the interior of the building. Regular inspections and maintenance are crucial to ensure that all roof penetrations are secure and watertight.

Roof edges

Roof edges, including eaves, rakes, and gutters, are vulnerable to leaks due to their exposure to wind, rain, and other weather elements. If the edge flashing is damaged, improperly installed, or not well-maintained, water can easily enter the building. In addition to inspecting the flashing, it is essential to ensure that the gutters are clear of debris and functioning properly to prevent water from accumulating and seeping under the roofing materials. Regular maintenance and prompt repairs are necessary to address any issues with the roof edges.

Drains and gutters

Drains and gutters are vital components of the roofing system that are designed to channel water away from the building. However, if they are clogged with debris or not properly installed or maintained, they can contribute to roof leaks. Clogged drains or gutters can cause water to accumulate on the roof surface, leading to ponding water and potential leaks. Regular cleaning and maintenance of drains and gutters are necessary to ensure proper water drainage and prevent leaks caused by blockages or improper functioning.

Basic Steps in Repairing a Leaking Commercial Roof

How to Fix a Leaking Commercial Roof

Cleaning the area

Before proceeding with any repairs, it is essential to clean the area around the leak to ensure proper adhesion of sealants or patching materials. Remove any loose debris or standing water from the roof surface. If there is mold or mildew present, it is recommended to take necessary precautions and consult with professionals trained in mold remediation.

Assessing the damage

Once the area is cleaned, carefully assess the extent of the damage to determine the appropriate repair approach. Look for any visible signs of cracks, holes, or damaged roofing materials. Consider the location and severity of the leak to determine the best course of action.

Deciding if professional help is required

Depending on the complexity and severity of the leak, it may be necessary to seek professional help. If you are unsure of how to properly repair the leak or if the damage is extensive, consulting with a qualified roofing contractor is recommended. Professional roofers have the expertise, tools, and materials to ensure a thorough and long-lasting repair.

Temporarily patching the roof

In some cases, it may be necessary to temporarily patch the roof to prevent further water infiltration until permanent repairs can be made. This can be done using roofing cement, sealant, or a patching material specifically designed for temporary fixes. Follow the manufacturer’s instructions and ensure that the patch is secure and watertight.

Applying Sealing to a Leaking Roof

How to Fix a Leaking Commercial Roof

Choosing the right sealing

When applying sealing to a leaking commercial roof, it is important to choose the right product that is appropriate for the specific roofing material and the type of leak. There are a variety of sealants available, including liquid-applied sealants, tape sealants, or sealant patches. Consult with a roofing professional or refer to the manufacturer’s guidelines to select the most suitable sealing product for your needs.

Proper application process

The process of applying sealing will vary depending on the type of sealing product chosen. Follow the manufacturer’s instructions carefully and ensure that the surface is clean and dry before applying the sealant. Use appropriate tools, such as a brush or roller, to evenly apply the sealant to the affected area. Pay close attention to roofing joints, seams, or any visible cracks or gaps where water may enter.

Ensuring durability of the sealing

To ensure the long-term durability of the sealing, regular inspections and maintenance are essential. Over time, seals may deteriorate due to weather exposure or general wear and tear. Inspect the sealed areas periodically and address any signs of damage or deterioration promptly. Additionally, consider scheduling regular roof inspections to catch any potential leaks before they become bigger problems.

Safely Replacing Damaged Roofing Materials

Proper removal of damaged materials

When replacing damaged roofing materials, it is crucial to do so safely and correctly. Wear appropriate safety gear, such as gloves and safety glasses, to protect yourself from potential hazards. Carefully remove the damaged materials, taking care not to cause further damage to the surrounding area. Dispose of the old materials properly according to local regulations.

Choosing replacement materials

When selecting replacement materials, ensure that they are compatible with the existing roofing system and meet the necessary requirements for durability and performance. Consult with a roofing professional or refer to the manufacturer’s recommendations to ensure that the new materials are of the appropriate quality and suitable for the specific application.

Installation of new materials

Proper installation of the new materials is essential to ensure their effectiveness and longevity. Follow the manufacturer’s instructions carefully and use appropriate tools and techniques for the specific type of roofing material. Pay close attention to areas of vulnerability, such as joints, seams, or flashing points, to ensure a watertight seal. If unsure about the installation process, it is recommended to seek professional assistance to ensure a proper and reliable repair.

When to Call in Professionals

Identifying complex leaks

While minor leaks can sometimes be addressed with DIY repairs, complex leaks or those that involve extensive damage should be left to the professionals. If the leak is difficult to locate or repair, it is best to contact a qualified roofing contractor who has the expertise and experience to handle such situations. They have the necessary tools, knowledge, and resources to identify the source of the leak and provide a thorough and effective repair solution.

Assessing structural damage

In some cases, a leaking commercial roof may not only cause damage to the roofing system but also to the structural integrity of the building. If you notice signs of structural damage, such as sagging or shifting walls, cracks in the foundation, or compromised support beams, it is crucial to seek professional assistance immediately. Structural damage requires the expertise of qualified professionals who can assess the extent of the damage and recommend appropriate repairs to ensure the safety of the building.

Choosing a roofing repair company

When selecting a roofing repair company, it is essential to consider their reputation, experience, and qualifications. Look for licensed and insured contractors who have a proven track record of successful roof repairs. Seek recommendations from trusted sources or check online reviews and ratings to gauge the company’s reliability and customer satisfaction. Additionally, request an estimate and compare pricing and services offered by multiple companies to make an informed decision.

Preventive Measures to Avoid Roof Leaks

Regular roof maintenance

Regular roof maintenance is the key to preventing leaks and prolonging the lifespan of your commercial roof. Schedule routine inspections at least twice a year, ideally in the spring and fall, to identify and address any potential issues before they become major problems. Inspect the roof surface, flashings, gutters, and drainage systems. Clean gutters and remove any debris that may obstruct water flow. Promptly repair any minor damages or signs of wear and tear to prevent them from developing into leaks.

Immediate repair of minor damages

To prevent minor damages from escalating into full-blown leaks, it is crucial to address them promptly. Keep an eye out for loose or damaged shingles, cracks or gaps in the flashings, or any visible signs of wear and tear. Consult with a roofing professional and follow their advice on how best to repair or replace the damaged areas. By taking immediate action, you can prevent further water infiltration and ensure the long-term integrity of your commercial roof.

Proper roof installation initially

Proper roof installation is a critical factor in preventing leaks and ensuring the longevity of your commercial roof. When embarking on a new construction project or replacing an existing roof, it is crucial to hire reputable roofing contractors who have the necessary experience and expertise in commercial roofing. Choose high-quality materials that are suitable for your specific needs and comply with industry standards. When installed correctly, a well-designed and properly installed roof can offer superior protection against leaks for many years.

Impact of Neglecting Leaking Commercial Roofs

Damage to property

Neglecting leaking commercial roofs can have severe consequences for the property. Over time, water infiltration can lead to significant damage, such as rotting of structural components, deterioration of insulation, or the growth of mold and mildew. These issues not only compromise the integrity of the building but also pose health risks to occupants. Repairing the damage caused by leaks can be costly and time-consuming, potentially disrupting business operations and causing inconvenience to employees and clients.

Increased repair costs

Ignoring roof leaks can result in increased repair costs in the long run. What may start as a minor issue can quickly escalate into a major problem if left unaddressed. Water infiltration can cause damage to multiple layers of the roofing system, necessitating extensive repairs or even a full roof replacement. Furthermore, water damage to the interior of the building may require repairs to walls, ceilings, flooring, or electrical systems, further adding to the overall repair costs.

Potential business operation disruption

Leaking commercial roofs can directly impact business operations by causing disruptions or downtime. Water leaks can damage inventory, equipment, or sensitive documents, leading to financial losses and potential delays in providing products or services to customers. In some cases, leaks may require temporary closures or shifts in operations to facilitate repairs, which can result in lost productivity and customer dissatisfaction. Addressing leaks promptly and implementing preventive measures can help avoid these disruptions and maintain a smooth functioning of the business.

Decreased property value

Neglected leaking commercial roofs can significantly decrease the value of the property. Potential buyers or tenants may be deterred by the presence of leaks or the need for extensive repairs. A structurally sound and well-maintained roof is a crucial factor in attracting prospective buyers or investors. By taking proactive steps to address leaks and maintain the integrity of the roof, property owners can protect their investment and preserve the value of the commercial property in the long term.

In conclusion, understanding the signs of a leaking commercial roof is essential for early detection and prevention of further damage. Factors such as aging, poor installation, faulty flashings, and ponding water can all contribute to roof leaks. Different types of commercial roofing systems present their own unique vulnerabilities. Regular inspections, immediate repairs, and proper installation are crucial to avoiding leaks. In case of complex leaks, structural damage, or the need for extensive repairs, it is advisable to consult with professionals. Neglecting leaking commercial roofs can result in damage to property, increased repair costs, disruptions to business operations, and decreased property value. By implementing preventive measures and maintaining a proactive approach, property owners can effectively manage and prevent roof leaks, ensuring the long-term integrity and functionality of their commercial roofs.

Scroll to Top