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Commercial Roofing Birmingham AL

How Hot Weather Can Damage Your Commercial Roof

As the sun beats down during scorching summer days, the intense heat can take a toll on various aspects of our lives, including the roofs of commercial buildings. While many people associate weather-related damage with extreme events like storms and heavy snow, the impact of hot weather on commercial roofs is often overlooked. Prolonged exposure to high temperatures can lead to significant damage, compromising the structural integrity of your building and causing potential financial burdens.

As your local commercial roofing company, we’ll explore the ways in which hot weather can damage your commercial roof and provide insights on how to mitigate these risks.

Thermal Expansion and Contraction

Commercial roofs are exposed to constant fluctuations in temperature, especially in regions with extreme summers. During the day, the roof’s surface absorbs the sun’s radiant heat, causing it to expand. Conversely, as the evening sets in, the cooling effect causes the roof to contract. This continuous process of expansion and contraction weakens the roof’s materials over time, leading to cracks and fractures.

Moreover, different roof components, such as metal flashing and roofing membranes, can expand and contract at varying rates, exacerbating the problem. These thermal movements can create gaps and separation points, making your roof susceptible to water leaks and other weather-related issues.

UV Radiation Damage

The sun’s ultraviolet (UV) rays can be incredibly destructive to roofing materials. Over time, prolonged exposure to UV radiation causes the roofing materials to deteriorate and degrade. Asphalt shingles, for example, can become brittle and start to crack, while single-ply membranes like EPDM and TPO may experience chalking and degradation of their protective layers.

As these materials degrade, they lose their ability to provide a proper barrier against moisture, wind, and other external elements. The weakened roof can then become more vulnerable to leaks, mold growth, and structural damage.

Heat-Induced Roofing Membrane Blistering

Commercial roofs with membranes are particularly susceptible to blistering caused by hot weather. As the sun heats the roofing membrane, trapped air or moisture within the layers may expand, creating bubbles or blisters on the surface. These blisters can weaken the membrane’s integrity, leading to further issues such as punctures and leaks.

Accelerated Aging

The combination of thermal stress, UV radiation, and other environmental factors can accelerate the aging process of your commercial roof. A roof that would typically last for decades may require costly repairs or replacement much sooner due to the harsh effects of prolonged hot weather. Premature roof aging not only increases maintenance expenses but also disrupts business operations during repairs.

Energy InefficiencyCommercial Roofing Company Birmingham AL

In hot weather, commercial buildings often rely heavily on air conditioning to maintain comfortable indoor temperatures. However, a damaged or poorly insulated roof can compromise the building’s energy efficiency. The heat absorbed by a deteriorated roof transfers into the building, leading to increased cooling demands and higher energy bills.

Mitigation and Maintenance Strategies

Protecting your commercial roof from hot weather damage is essential for its longevity and your peace of mind. Here are some effective strategies to mitigate the impact of hot weather:

Regular Inspections: Schedule routine inspections by professional roofers to identify and address potential issues before they escalate. Prompt repairs can extend your roof’s lifespan and save you from costly replacements.

Roof Coatings: Apply reflective coatings on your roof to deflect UV rays and reduce the absorption of heat. These coatings can also help extend the life of your roof and enhance energy efficiency.

Proper Ventilation: Ensure that your commercial building has adequate ventilation to reduce heat buildup in the attic or roof cavity. Proper airflow helps maintain a more consistent temperature on the roof’s surface.

Insulation: Improve roof insulation to minimize the transfer of heat into the building. Enhanced insulation can lead to significant energy savings and a more comfortable indoor environment.

Landscaping: Consider landscaping strategies that provide shade for your commercial building, which can reduce the amount of heat absorbed by the roof.


Hot weather can be a silent assailant, relentlessly damaging your commercial roof over time. Understanding the potential hazards and implementing proper maintenance strategies can safeguard your investment and business operations. Regular inspections, the application of reflective coatings, proper ventilation, and adequate insulation are some of the key measures to protect your commercial roof from the scorching heat of summer, ensuring it stands strong for years to come. By taking proactive steps, you can mitigate the impact of hot weather and preserve the integrity of your commercial roof, thereby securing your business against unexpected roofing issues.

Your Local Residential and Commercial Roofing Company

Elevated Roofing is a trusted provider of tailored, full-service solutions for commercial roofing needs. With over 35 years of combined experience, our expert team is well-versed in all types of commercial roofs, from flat to metal roofs. Our goal is to deliver the best solution for your specific requirements and budget, saving you time and money in the process. As a Durolast, Versico, and Mule-Hide certified company, as well as a GAF Master Certified installer, our commitment to excellence is evident. Additionally, our certifications from Tropical, ER Systems, and Sherwin Williams for roof coatings showcase our dedication to staying at the forefront of industry standards. For all your commercial roofing needs, look no further than Elevated Roofing, where quality and customer satisfaction are our top priorities.

Give us a call today. Our roofing experts are always happy to answer any questions you may have and provide a free comprehensive roof inspection to get your project started on the right foot.

We’re proud to offer a wide range of roofing services, including:

  • Complete Roof Replacement Services
  • Roof Installation Services
  • Roof Repair Services
  • Commercial Roofing Services (Flat Roofs, Metal Roofing, TPO, PVC)
  • Commercial Roof Repairs
  • Storm Damage Restoration

Visit our About Us page for more information about our roofing business, the services we provide, and more.

Posted on by Elevated Roofing
How Hot Weather Can Damage Your Commercial Roof

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