aluminum roof coating

The Benefits Of Using an Aluminum Roof Coating In Commercial Buildings

May 28, 2024
Protect your commercial building with a long-lasting aluminum roof coating. Extend roof life and improve energy efficiency.

As a commercial property owner or manager, protecting your building and reducing operating costs are top priorities. One solution that can help achieve both goals is aluminum roof coating. This innovative roofing technology extends the life of your asphalt roof, improves energy efficiency, and provides long-lasting protection against the elements.

What is an Aluminum Roof Coating?

An aluminum roof coating is a reflective, protective layer applied to commercial roofs to shield them from the elements. Made from aluminum pigments, binders, and solvents, these coatings form a durable barrier against sun, rain, and wind.

Characteristics of Aluminum Roof Coatings

Aluminum roof coatings are highly reflective and durable. They consist of aluminum flakes in a bituminous liquid, forming a seamless metallic layer on the roof surface. The reflective barrier deflects sunlight and heat, reducing the amount of thermal energy absorbed by the building. Their resistance to UV rays and harsh weather extends the roof’s lifespan, reducing maintenance costs.

Types of Aluminum Roof Coatings

  1. Rubber-based Aluminum Roof Coatings: Contain SBS rubber and organic solvents for faster drying times and improved adhesion. These are highly durable and weather-resistant, ideal for harsh climates.
  2. Fibered Aluminum Roof Coatings: Incorporate fibers for enhanced strength and resistance to cracking. Suitable for asphalt roofs with irregular surfaces.
  3. Non-fibered Aluminum Roof Coatings: Provide a sleek, reflective finish for smooth surfaces. Easier to apply and maintain.

How Aluminum Roof Coatings Work

High-quality aluminum roof coatings reflect sunlight, reducing heat absorption and maintaining cooler temperatures inside the building. This reduces the energy required for cooling systems. These coatings typically have a high reflectivity rating, often exceeding 70%, minimizing heat transfer into the structure. The uniform, durable layer protects the roof from weathering and UV radiation, extending its lifespan.

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Benefits of Aluminum Roof Coatings

Reflects Sunlight and Reduces Heat Absorption

An aluminum roof coating acts as a reflective barrier, bouncing sunlight away from the building's surface. This reflective property significantly reduces the amount of heat absorbed by the roof, keeping the interior cooler and more comfortable during hot summer months. By minimizing heat absorption, aluminum roof coatings decrease the workload on air conditioning systems, leading to lower energy consumption and costs. The reflective nature of aluminum roof coatings also contributes to the overall energy efficiency of the building, making them an environmentally friendly choice for commercial roofing projects.

Extends Lifespan of Roof

Aluminum roof coatings act as a protective shield for commercial building roofs, significantly extending their lifespan. This coating forms a barrier against harsh weather conditions and UV rays, preventing premature deterioration of the underlying roofing materials. By minimizing the impact of these damaging factors, aluminum roof coatings reduce the need for frequent repairs and replacements, thereby saving property owners substantial costs in the long run. Moreover, the reflective properties of aluminum roof coatings help regulate the building's internal temperature by deflecting sunlight and heat. This temperature regulation reduces thermal expansion and contraction of the roofing materials, which can cause cracks and leaks over time. With less stress on the roof structure, the overall integrity of the roofing system is maintained for an extended period, ensuring long-lasting performance and durability.

Environmentally Friendly

Aluminum roof coatings are an environmentally-friendly choice for commercial buildings. These coatings reflect sunlight, reducing the amount of heat absorbed by the roof and decreasing the building's energy consumption. By lowering the demand for air conditioning, aluminum roof coatings contribute to reduced carbon emissions and help mitigate the urban heat island effect in cities. Choosing an aluminum roof coating is a sustainable decision that benefits both the environment and the building owner's bottom line.


An aluminum roof coating is an economical solution for commercial building owners looking to protect their roofs without breaking the bank. This affordable option can save property managers significant amounts on energy bills by reflecting sunlight and reducing heat absorption, leading to lower cooling costs during hot summer months. Aluminum roof coatings also offer a cost-effective way to extend the lifespan of existing roofs, minimizing the need for expensive replacements or frequent repairs. Investing in an aluminum roof coating makes financial sense for construction companies and commercial roofers working with clients on a budget. The initial cost of application is relatively low compared to other roofing options, and the long-term benefits of reduced maintenance and energy savings make it an attractive choice. By recommending aluminum roof coatings to their clients, roofing professionals can help them save money while still providing a durable and reliable roofing solution.

How to Choose the Right Aluminum Roof Coating

When selecting an aluminum roof coating for your commercial building, consider factors such as your location's climate and the desired level of reflectivity. Opt for reputable brands and products with UL or ENERGY STAR certifications to ensure quality and effectiveness.

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Consider Location and Climate

Location and climate play a critical role in selecting the most suitable aluminum roof coating for commercial buildings. Different regions experience varying weather conditions, such as extreme temperatures, high humidity, and heavy rainfall or snowfall, which can significantly impact the performance and longevity of the roof coating. For instance, buildings in hot and sunny climates may require a coating with higher reflectivity to minimize heat absorption and reduce cooling costs, while those in areas prone to severe weather events like hurricanes or hailstorms may need a coating with enhanced durability and impact resistance. Consulting with a local roofing professional or manufacturer can help identify the specific challenges posed by the building's location and recommend the most appropriate aluminum roof coating solution. They can assess factors such as the average temperature range, UV exposure, precipitation levels, and wind speeds to determine the optimal coating formulation and application method. By taking into account the unique climatic conditions of the area, commercial roofers, property managers, and construction companies can ensure that the chosen aluminum roof coating will provide long-lasting protection and energy efficiency for the building.

Determine Desired Level of Reflectivity

The desired level of reflectivity of an aluminum roof coating is a crucial factor to consider for commercial buildings. Different coatings offer varying levels of reflectivity, ranging from low to high, depending on the specific formulation and additives used. Higher reflectivity means more sunlight is reflected away from the building, leading to reduced heat absorption and lower cooling costs. To determine the optimal reflectivity level for your commercial building, assess factors such as the local climate, building orientation, and energy efficiency goals. In hot and sunny regions, a highly reflective coating is often preferred to minimize heat gain and maintain a comfortable indoor temperature. Consult with a professional roofing contractor or manufacturer to select an aluminum roof coating that strikes the right balance between reflectivity and other performance characteristics, ensuring the best fit for your building's unique requirements. Choosing the right brand and product is essential for achieving the desired results.

Look for Reputable Brands

KARNAK, for example, is a reputable brand known for high-quality aluminum roof coatings in the commercial roofing industry. These companies have a proven track record of delivering durable, sustainable, and innovative roofing solutions that protect and prolong the life of commercial buildings. By choosing products from these trusted brands, commercial roofers, property managers, and construction companies can ensure they are using reliable and effective aluminum roof coatings backed by extensive product documentation, instructional resources, and customer support. Reputable brands like KARNAK offer warranties on aluminum roof coatings, providing added assurance and peace of mind to building owners. These companies are committed to sustainability and quality, constantly developing advanced formulations that reflect sunlight, reduce heat absorption, and provide waterproofing and UV protection. Opting for aluminum roof coatings from well-established, reputable brands ensures that commercial buildings benefit from the latest technologies and the highest standards of performance in the roofing industry.

Check for UL or ENERGY STAR Certifications

When selecting an aluminum roof coating for your commercial building, it is crucial to look for products that have earned UL or ENERGY STAR certifications. These certifications provide assurance that the coating has undergone rigorous testing and meets stringent performance and sustainability standards. UL certification verifies that the product satisfies safety and performance requirements, while an ENERGY STAR certification signifies that the coating can contribute to energy efficiency and potentially lower energy expenses for your commercial property.


Aluminum roof coatings offer a multitude of benefits for commercial buildings, from energy efficiency to extended roof life. These reflective coatings reduce heat absorption and protect against UV rays, all while being environmentally friendly and cost-effective.

Choosing the right aluminum roof coating depends on factors like location, climate, and desired reflectivity levels. Reputable brands with UL or ENERGY STARcertifications ensure quality and performance.

Get In Touch Today

Optimize your commercial building's roofing system with KARNAK's aluminum roof coating solutions. Our expert team is dedicated to helping you select the ideal coating for your needs. Invest in the longevity and performance of your commercial roof with KARNAK’s aluminum coatings today. Contact us to get started!

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The Karnak Team

Since 1933, our team at KARNAK has been dedicated to producing top-quality sustainable roofing and building solutions that protect and extend the life of building envelopes while reducing environmental impact. As a family-owned and certified woman-owned business, we pride ourselves on our commitment to quality, durability, and personalized customer service. We specialize in liquid-applied roofing systems, repair products, and comprehensive support through detailed documentation and our Q Applicator Program for contractors.

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