MoistureLok™ prevents the spread and absorption of water from the first day of installation and beyond!  

Condensation lingering on a roof can lead to problems, such as rusting fasteners, water damage to panel substrates and insulation and framing deterioration. Each of these issues can quickly become catastrophic to a roofing system, which is why, if left unchecked, condensation is a major problem. For this reason, McElroy Metal offers MoistureLok™ for their metal panel profiles, a simple solution designed to prevent condensation.  

MoistureLok is a factory-applied condensation control membrane that is applied to the underside of select metal panel profiles, creating an absorption layer designed to give moisture a place to go, stopping the accumulation and drip into other more vulnerable parts of a roofing system. As temperatures change and humidity emerges, the condensation that has been gathered is then released back into the atmosphere. 

While MositureLok plays a vital role in protecting the overall roofing system, it wasn’t designed to be a replaceement for proper ventilation or insulation systems. Rather, MositureLok works in tandem with these systems, providing an additional layer of protection. Especially in areas with major humidity and moist climates, it can be that perfect additional layer of system protection. 

Designed to offer the best possible moisture control to structures like agricultural buildings, storage facilities, post-frame buildings, non-conditioned commercial buildings, Moisture Lok comes pre-applied so contractors only have to worry about getting the product secured and installed on the respective roof, making the usual process easier and less of a labor strain.  

Maximize your ability to control condensation and protect systems from extra water exposure with these coated panels!  

Learn more about McElroy Metal’s MoistureLok.

Ten companies have been committed to METALCON and the industry from the beginning.

When the industry gathers in Orlando for METALCON this fall, the Legacy 10 will be honored for exhibiting at every show, dating back to 1991.

With that kind of long-term commitment comes worthy recognition. The Legacy 10 will be honored in a variety of ways leading up to and at the show, scheduled for October 7-9 at Orange County Convention Center.

AkzoNobel, ATAS International, Atlas Bolt & Screw, AZZ Precoat Metals, Englert, Metal Construction News, McElroy Metal, Metal Rollforming Systems, PPG and Roof Hugger make up the Legacy 10. To learn more about the Legacy 10 visit www.metalcon.com/legacy10.

“These companies have supported METALCON from the very beginning and, in many ways, helped build the event into what it is today,” says Judy Geller, VP trade shows, METALCON. “Their continued commitment reflects not only the value of face-to-face business, but also their investment in advancing the metal construction industry.

“There is an abundance of marketing options for the manufacturers and suppliers in our industry. So, the long-term consistent commitment to METALCON by these industry leaders makes METALCON and our industry stronger.”

“We were an early member of the Metal Construction Association, a half-owner of the tradeshow,” says Dale Nelson, president of Roof Hugger. “Tom Black set up an educational program for attendees and we were quick to volunteer to show folks it was possible to retrofit an existing metal roof.”

Roof Hugger has annually been a participant in live demonstrations at METALCON, including solar panels being installed on metal roofing.

“For a company like ATAS International, exhibiting at METALCON is important because it places us at the center of the metal construction industry’s most influential gathering,” says Lee Ann Slattery, FCSI, CDT®, CCPR, LEED AP BD+C, sales support manager at ATAS. “METALCON is recognized as the largest international event dedicated exclusively to metal construction and design, bringing together architects, contractors, distributors, fabricators, manufacturers and building owners from around the world.”

Trade shows attract decision makers and METALCON specifically welcomes these architects, specifiers, roofers and builders.

“For Atlas Bolt & Screw, METALCON has always been more than a tradeshow,” says Don Bratcher, vice president of sales for OEM, Atlas Building Products. “It’s a critical touchpoint with the people and the industries we serve. As a longtime exhibitor, we find METALCON a unique opportunity to connect face-to-face with contractors, fabricators, manufacturers and industry partners who rely on fastening solutions every day.”

METALCON attendees cover the full metal construction ecosystem: contractors, designers, fabricators, manufacturers, suppliers and professionals, the entire gamut of customers for exhibitors.

“It allows us to put the Englert brand directly in front of a highly targeted, qualified audience of architects, contractors and metal construction professionals,” says Jonathan Giacchi, B2B marketing manager, Englert. “METALCON provides a captive audience of decision makers who are actively evaluating products and solutions, making it one of the most efficient channels to build brand awareness, reinforce market positioning and influence specification and purchasing decisions.”

Trade shows provide suppliers and customers with an opportunity to shake hands and open up about business challenges.

“Our focus is on knowing what our customers need and delivering solutions as timely as possible,” says Bill Griffin, president and co-owner of Metal Rollforming Systems. “It’s important for MRS to exhibit at METALCON so we can have face-to-face conversations, allowing us to really get a deeper understanding of what our customer’s challenges and priorities are. These connections allow us to stay ahead of market trends and provide solutions for the evolving priorities of the industry.”

Exhibitors recognize the opportunity to provide hands-on product education at METALCON.

“We have a booth at METALCON because the mix of potential customers is different than other roofing trade shows,” says Charlie Smith, national recover manager at McElroy Metals. “The attendees are specifically in the metal roofing business in one way or another. Other shows include contractors who do low-slope single-ply or steep slope shingles. I like that METALCON is focused on metal roofing.”

In addition to cultivating new business, METALCON exhibitors show up to support the industry, providing attendees with the greatest selection of products and services under one roof.

“PPG and METALCON have partnered for 35 years and we are honored to be among the Legacy 10 companies that have been part of the show’s story from the beginning,” says Steve Rutkowski, senior manager-coil & appliance, PPG Industrial Coatings. “Our ongoing support and lead sponsorship of the Design District, reflect our commitment to collaboration, industry leadership and the community of manufacturers, architects and designers. We are grateful for the opportunity to showcase our products for building products and architectural products that push design and performance forward. As METALCON marks 35 years, PPG is proud to celebrate a legacy of partnership that has helped advance innovation, strengthen the industry and support people who continue to shape metal construction.”

Ten companies have been committed to METALCON and the industry from the beginning. Ten companies that have never missed a show: The Legacy 10. Their commitment has helped transform the metal construction industry over the past 35 years. They have played a significant role in advancing the performance, durability, efficiency and design possibilities of metal construction products while driving broader adoption across commercial, industrial, institutional and residential markets.

To explore each Legacy 10 company, view historical photos and learn more about their lasting impact on METALCON and the metal construction industry, visit www.metalcon.com/Legacy10.

With many homeowners looking to reroof their homes this year, do you have what it takes to secure projects? Let’s find out.  

Did you know that in 2026 alone, it’s estimated that nearly a fourth of homeowners looking to make changes to their roof are considering a reroof for their home? Not only is this a significant portion of the market, but it means a substantial amount of profit to be made from securing sales of reroofing projects to your customer base!  

When the market begins to take such a significant shift towards certain projects, it’s a sign to buckle up and get ready to secure your portion of the pie. Homeowners are looking for skilled contractors who are ready to get them the best roof for their budget – do you have what it takes?  

McElroy Metal notes that when statistics start showing such a large portion of a market segment is preparing to make a purchase or change, it’s a sign that an earlier construction cycle has come to an end. With traditional roofing materials having limited lifespans, there comes a time when all homeowners who got roofs during the same period come calling for a replacement or, in the case of moving to metal, an upgrade.   

This sets the stage for a major opportunity metal contractors won’t want to miss. Instead of continuing the cycle of short lifespans that materials such as asphalt can provide, why not show the homeowner the benefits of opting for a metal alternative, one that can double or even triple the lifespan of their previous roof!  

It’s essential to show a homeowner that, this time around, it’s time to take control of their home’s health and get the full benefits of their investment by choosing metal. It’s certainly a choice they won’t regret, eliminating the worry about having to endure the reroof process and cost again. Once metal is installed, a homeowner can expect their roof to last at least 50 years or longer!  

Want to learn more about securing sales among the portion of homeowners looking to reroof? Read more from McElroy Metal’s blog.

The Coffee Shops™. 

Taking a closer look at the true value of metal roofing in an evolving market.  

For the contractor considering adding metal roofing services to their line-up, the biggest question is obvious: is metal going to make me enough money to be worth it? The question is reasonable and is merely one consideration roofing professionals should keep in mind when deciding on whether metal is the right move for their business. McElroy Metal breaks down the most important questions regarding metal profitability, sorted in an easy-to-follow guide for readers to contemplate and take into account when making this decision.  

Let’s take a look at the most pressing concerns contractors might have, and what the experts have to say.  

Is metal roofing a profitable enough route to justify the shift away from shingles?  

Absolutely! For contractors focused solely on traditional materials, industry reports found the usual returns in net profit are slim, ranging in the 6-10% for net profit and gross margins of 25-40%. Meanwhile, those numbers hardly scratch the surface for metal contractors, who tend to bring in double digits, a major shift from what shingles bring. To boot, metal frequently and commonly achieve gross profit margins well above 35%.  

With these figures in mind, one must consider the lasting impact of the choices each contractor makes; fighting for every digit gained in percentage working with shingles, meanwhile, metal contractors feel secure in knowing the value and sturdy lifespan their products can offer customers for decades to come.  

The durability of a metal roofing system is singlehandedly one of the most valuable selling points of the material choice. Customers desire a system that will not only deliver on its promise of protection, but the investment cost as well. With that in mind, securing sales for these systems isn’t a hassle in jumping through hoops of empty promises – metal is certain to deliver!  

What is the ultimate cost of installing metal roofing? 

Of course, many have heard about the upfront price tags attached to metal roofing systems. While material costs are certainly higher compared to shingles at face value, it’s critical to understand that the quality and incredible lifespan that’s tied to the cost of these roofs makes every penny worth investing. Not only that, but the installation process for metal roofs is surprisingly efficient. Designed as panels made to interlock and fit together strategically, installers can get the work done at incredible speeds, without sacrificing work quality. The time saved from quick installations can mean significant time spent elsewhere for your crew, bringing in even more leads and sales.  

Metal’s appeal 

In the end, the value of investing in metal roofing systems comes down to understanding what makes these systems superior in practically every way to traditional systems. From a wide range of color options and aesthetics to the 50+ year average lifespan, it’s hard to look at all of the benefits that come with a metal roof and decide that it’s not with every penny. By learning what makes these products superior and worth it in every way, contractors can set themselves up for success, again and again, as home and building owners continue to turn towards modern solutions like metal.  

To learn more about the profitability of metal and contractrors’ most pressing questions about metal profit margins, read McElroy Metal’s article.

By Metal Construction Alliance.

Join us to learn design‑focused, technical and practical tips from three experts, including an award-winning architect and an industry-leading specifier!

You're invited to earn up to three continuing education (CE) credits at a new, half-day educational program on May 29, 2026 in Chicago. Form, Function, and Finish: Designing with Metal is being developed and delivered by the Metal Construction Association (MCA)—the industry authority on the use of metal in the building envelope. Breakfast is included, and you can make new connections with time to network with attendees and vendors.

The details

When: Friday, May 29, 2026 from 8 a.m. to 1 p.m.
Where: 633 North St. Clair Street, Chicago
What: Earn three (3) CEs in one morning
Why: Level up your skills and network

Registration is free for architects, designers and specifiers from throughout the Chicago area, Milwaukee and northwest Indiana.

What you'll learn and from whom

Designing with Metal: Performance, Resilience + Architectural Expression
Rick Schneider, FAIA LEED, founder and principal of ISTUDIO Architects
An architect will discuss how metal systems reduce long-term operational costs, streamline construction and support resilient design via four award-winning projects. 

Designing With Metal Composite Materials
Samuel Chastain, director of commercial operations at Alfrex, Inc
Learn about flexibility, sustainability, energy efficiency and visual appearance designing with metal composite materials from an experienced industry professional who co-invented a composite building panel with improved resilience.

Insulated Metal Panels: Performance, Sustainability, + Design
Kyle Ferenc, CSI, district sales manager, ATAS International and VP of the Chicago Chapter of the Construction Specifications Institute
A specifier will explore various uses for insulated metal panels in creative design, and the benefits of long-term sustainability. 

Companies you can connect with

In addition to learning, you can network with other attendees and meet leading suppliers for the metal building envelope. These companies include McElroy Metals, ATAS International, Sheffield Metals and more. The entire event is sponsored by Sherwin-Williams Coil Coatings. Make new connections and find products to help you achieve your goals!

Save your seat today! 

Taking a closer look at the MasterLok line of standing seam panels for low-slope commercial roofing. 

In low-slope commercial roofing projects, it’s important to consider the intricate role panel design and quality will play when it comes to getting the most exact measurements. With seam configuration as a top-of-mind factor, panels such as the MasterLok-90 and MasterLok-FS from McElroy Metal are the ideal trapezoidal standing seam panel systems for the job. Each panel system is designed with low-slope applications in mind and offers different seam configurations based on your project needs.  

McElroy Metal breaks down the core differences and components of each panel profile, offering a better look at how to determine which panel is right for your project needs.  

What is the MasterLok Standing Seam System? 

MasterLok-90 and MasterLok-FS share the same trapezoidal standing seam panel profile and feature a 3" rib height. Both panels are designed for roof slopes as low as 1/4:12 and are intended for simple sloped roofs without dormers, hips, valleys or other special conditions. 

Both systems can be installed over solid decking or open framing, allowing them to be used in a variety of low-slope roofing assemblies. 

Within that shared platform, the difference between the two panels lies in seam configuration. 

MasterLok-90 

MasterLok-90 (ML-90) is a snap-together trapezoidal standing seam system. The panel uses the same trapezoidal geometry found across the MasterLok family and is designed for low-slope roofing applications. 

This system is commonly used on commercial and industrial buildings with low-slope roof assemblies, including projects with long panel runs and complex roof layouts. It may be considered for new construction or recover applications when project conditions allow. 

From an installation standpoint, proper panel alignment and engagement are important for supporting the system's long-term performance. Careful attention to installation details helps ensure the panels are installed in accordance with manufacturer guidelines and perform as intended over time. 

How does MasterLok-FS differ from MasterLok-90? 

MasterLok-FS uses the same panel geometry as MasterLok-90 but features a mechanically seamed configuration. This distinction sets it apart from the snap-together design used in MasterLok-90 while maintaining the same overall panel geometry. 

With MasterLok-FS: 

• Panels are installed by engaging the factory-formed edge 
• Final mechanical seaming is completed after placement 

As with any mechanically seamed standing seam system, proper installation in accordance with manufacturer guidelines is important to ensure the panels are properly engaged. 

Learn about seaming tool rental. 

Comparing MasterLok-90 and MasterLok-FS for low-slope commercial roofing 

The primary difference between MasterLok-90 and MasterLok-FS is how the seam is formed and completed. 

• MasterLok-90: snap together trapezoidal standing seam system 
• MasterLok-FS: features a mechanically seamed configuration 

Neither system is intended to replace the other. Instead, each supports different testing and project requirements. MasterLok-FS systems typically offer improved uplift and weather-tightness performance, so they're popular in coastal and high wind applications. In contrast, MasterLok-90 offers a quicker installation and lower overall cost. 

Low-slope design considerations for standing seam metal roofing 

Low-slope metal roofing systems require careful planning beyond the panel profile itself. When working with MasterLok systems, contractors should consider: 

• Minimum slope requirements  
• Substrate preparation and condition 
• Underlayment selection and compatibility 
• Penetration, edge and transition detailing  
• Drainage paths and roof geometry  

Early coordination between the contractor, design team and manufacturer can help reduce field adjustments and support predictable installation outcomes. 

What is the MoistureLok® anti-condensation option? 

MasterLok-90 and MasterLok-FS are available with the MoistureLok® anti-condensation option. MoistureLok is a factory-applied feature designed to help manage condensation that may form on the underside of metal roof panels. 

The MoistureLok material is applied to the underside of the panel during manufacturing and is designed to absorb and store moisture until conditions allow it to evaporate. This option can be used in applications where condensation management is an important consideration. 

Selecting the right MasterLok system for your low-slope roofing project 

For contractors, choosing between MasterLok-90 and MasterLok-FS is a project-specific decision. Both systems are engineered to address the challenges associated with low-slope metal roofing, but each offers a different approach to installation and different strengths. 

Understanding how seam formation, jobsite workflow and detailing requirements differ between the two systems allows contractors to make informed recommendations and plan installations more effectively. Matching the system to the project's conditions, rather than forcing it beyond its intended use, remains the most reliable path to long-term roof performance. 

Original article source: McElroy Metal

By The Coffee Shops™. 

Metal roofing systems offer a wide range of benefits, and determining what system is right for your customer starts with understanding the material. 

While homeowners often concern themselves with curb appeal and the aesthetics of their roofs, priorities for commercial building owners are a bit different. For a commercial building, a durable and long-lasting roofing system is the top priority. These roofs need to last, as they’re often a major investment in the success of whatever operations happen inside the structure they protect. That’s why metal manufacturers, like McElroy Metal, make the case for using metal roofing in commercial work.  

Metal roofing systems are well known for their reputation as having one of, if not the, longest service lifespan on the market. Metal roofs can be expected to last decades, from 50-70 years! For commercial building owners looking for a solution with low maintenance needs and superior durability that’s going to get them the most out of their investment, metal is fantastic.  

On top of that, metal roofing systems are tested and continue to receive stellar ratings for wind uplift and water-shedding performance. In environments prone to harsh weather conditions or where wind and rain are commonplace, these systems are designed to protect and prevail. In addition, regions experiencing volatile weather patterns have the benefit of maximized energy efficiency with metal roofs, which are a great sustainable option due to metal’s ability to regulate internal temperatures better than conventional roofing materials.  

In the long run, metal is hard to pass on once you’ve identified the impressive characteristics and capabilities it offers. Superior durability, energy efficiency, a long lifecycle and even modern aesthetics – metal has it all!  

Learn more about the benefits of using metal roofing systems in commercial projects.

By Dani Sheehan. 

A growing community gathered in Oklahoma City this year to celebrate craftsmanship and strengthen the post-frame industry. 

Members of the National Frame Building Association (NFBA) gathered in Oklahoma City, Oklahoma, for the 2026 NFBA 58th Annual Conference and Expo, bringing together builders, suppliers and industry leaders to share ideas and celebrate the post-frame community. 

Held at the Oklahoma City Convention Center, this was the first time NFBA has hosted its annual expo this far west. The new location proved to be a success, drawing record attendance and introducing the show to new builders and markets. 

“This is our first time in Oklahoma City, so we really weren’t sure how it was going to go,” Morgan Arwood, membership director for NFBA, shared in a live floor interview. “We were pleasantly pleased to have so many people here at the show.” 

Moving the expo farther west allowed contractors from states such as Texas and Arizona to attend more easily, expanding the reach of the event and bringing new participants into the post-frame community.  

Trade show floor showcases 

The expo floor gave attendees the opportunity to explore the latest innovations shaping the post-frame industry, with exhibitors highlighting new products, equipment and services designed to support builders and contractors. 

We had a great time exploring the show floor, frequently pausing at the demo area as they assembled an entire post-frame building in a matter of hours. Our partners at Everlast Roofing were highlighting their color guides with a magnetic board of samples you could touch and see how different lighting affected each shade. MetalForming LLC brought their tried-and-true Schroeder and Schechtl machines while also announcing their newest partnership with New Tech Machinery. We loved capturing content with K9 Fasteners®, who shared why their fasteners exceed the durability and performance standards needed in places like Oklahoma and Colorado that endure frequent extreme weather events. And Jamie at Chem Link showed us how quickly and easily their M1® Universal Adhesive and Sealant repairs leaks even underwater! 

NFBA continues expanding its reach 

As the industry continues to grow, NFBA is working to ensure its annual expo remains accessible to members nationwide. Future expo locations are expected to rotate among cities such as Columbus, Ohio; Louisville, Kentucky; and Nashville, Tennessee, while periodically introducing additional outlier locations to expand the association’s reach. 

“As the National Frame Building Association, we have to be national,” Morgan said. “By moving locations and introducing the show to different regions, the goal is to help post-frame gain traction and attract more builders.” 

Celebrating craftsmanship  

One of my favorite events of the expo each year is the awards luncheon, where NFBA members gather to celebrate the craftsmanship and innovation shaping the post-frame industry. This year’s Building of the Year Awards saw a record 110 project submissions! Winning projects represented a wide range of building types, including agricultural, commercial and residential structures, demonstrating the versatility and design flexibility that post-frame construction offers.  

To recognize companies of varying sizes, awards were divided into three categories this year based on annual post-frame sales volume. Each winning project received two plaques, one for the builder and one for the building owner. “When a building owner gets to display a Building of the Year award and someone asks who built it, it becomes a great referral opportunity for that contractor,” Morgan added. 

In addition to honoring outstanding projects, NFBA also recognized individuals who have made significant contributions to the industry. Awards presented during the ceremony included Crew Foreman of the Year to celebrate the field leaders who help ensure projects are completed safely and successfully. The association’s highest honor, the Bernon G. Perkins Award, was presented to Ken Gieseke, who recently retired from McElroy Metal. A past NFBA president, Ken has long been recognized for his dedication to the association and his leadership within the metal construction industry. 

Networking and community remain at the heart 

While the trade show floor and educational sessions are central to the expo, NFBA always provides numerous opportunities for members to connect and strengthen relationships across the industry. Both the PLYCO reception and the NFBA Social and Silent Auction were favorited this year. Proceeds from the silent auction support the NFBA Foundation, the association’s charitable arm dedicated to advancing the industry through research, technology initiatives and education. This year was an important milestone as the foundation awarded its first two scholarships to support the next generation of our industry. 

From first-time attendees to long-time members, the expo reflected a culture of collaboration and mentorship that has long defined the post-frame industry. “The people in this industry are fantastic – truly some of the kindest people you’ll ever meet,” Morgan shared. “It’s fun to be around them and it’s fun to be part of an association that supports them.” 

Catch up on what you missed at this year’s expo with other live interviews on our MetalCoffeeShop YouTube channel!

By Anna Lockhart.  

Seamlessly bring together any metal structure with the help of this concealed fastener metal panel from McElroy Metal.  

When it comes to choosing a material for building exteriors, durability and aesthetics are some of the first qualities to come to mind. Metal siding and wall panels can deliver on both fronts, giving a building’s exterior a sleek and modern look while also offering long-lasting protection against the elements.  

Taking it a step further is the selection of soffits and fascia that can provide additional support to the primary wall system’s lifespan. One such product is the Marquee-Lok metal panel from McElroy Metal, a concealed fastener panel created for soffit and fascia use. Versatile and durable, this panel profile stands out to designers and contractors due to their various potential uses across a single project. 

Using Marquee-Lok panels create a seamless, modern look for the building exterior, a design choice favored by those looking to increase aesthetics and maximize curb appeal. Further, for soffit and fascia applications, the panel aids in increasing a structure’s strength and creating a uniform appearance along roof edges and overhangs. Need the exterior to blend across all areas? Marquee-Lok can be used as wall panels as well, covering areas where consistency is needed, cutting down on the number of unique profiles purchased for a project.  

Seen frequently on commercial buildings and institutions such as campuses and office spaces, it’s necessary for the chosen panels to offer a well-blended appearance due to their highly visible nature. Marquee-Lok panels offer a seamless appearance that elevates any project, while also assuring that structure can be relied upon to endure for decades to come.  

Learn more about the benefits of utilizing Marquee-Lok panels in your next project!

The latest coating technologies are designed with sustainability and durability in mind. Here’s what you need to know about these innovative solutions.  

As the market shifts towards more environmentally friendly designs and material choices, finding ways to provide sustainable metal roof coatings is a top priority for many contractors. This recent, yet rapid, change is showcasing just how critical embracing new and innovative paint technologies can help secure business and satisfy customers as we move into a new era of eco-conscious thinking. 

The metal roofing experts at McElroy Metal share the must-know facts about the latest coating technologies and how this evolution can be a game changer, if adapted and understood correctly.  With the right metal roof coatings and understanding of their environmental impact, contractors can take on this evolving market in a whole new way. 

The good-better-best coating hierarchy 

When we talk about sustainable paint technologies, it's crucial to understand the three-tier system that defines today's metal roof coatings. Picture it as a performance pyramid where each level represents a unique balance between cost, performance and environmental impact. 

Polyester coatings: The foundation level 

These coatings serve as the entry point into the market. While they offer basic protection for interior applications and some limited outdoor use, their performance limitations make them unsuitable for most residential projects. The cost advantage becomes meaningless when you consider premature replacement cycles. Experienced contractors steer clear of recommending polyester coatings for projects where long-term performance matters, which covers virtually every residential application. 

Silicone-modified polyester (SMP): The middle ground 

SMP systems represent a step up from straight polyester, but this is where real-world performance reveals the true story. I've witnessed too many contractors caught off guard by SMP's limitations. The most compelling evidence came from a Louisiana project where identical green panels were installed — some with SMP, others with PVDF coatings. After just eight years, the SMP panels displayed severe fading and chalk degradation while the PVDF panels maintained their original appearance. 

This isn't an isolated incident. SMP coatings consistently demonstrate significant fade and chalk issues within the first decade of service. While they might work for budget-conscious projects with light colors where degradation is less noticeable, they're not the sustainable choice for clients who value long-term performance. 

PVDF (Kynar 500®): The sustainability leader 

PVDF coatings have been establishing the standard since their development in 1965. Originally embraced by the architectural community for their superior performance, these coatings quickly became the gold standard for commercial applications. The game-changer arrived in the 1990s when government intervention dismantled the monopoly on PVDF resin production, making high-performance coatings accessible to all quality-conscious consumers. 

What makes PVDF the most sustainable choice? The numbers tell the story. PVDF warranties allow only 20% chalk resistance for roofing applications versus 50% for SMP systems. For fade performance, PVDF maintains 5 Delta E compared to SMP's 9 Delta E. These aren't just technical specifications — they translate directly to real-world performance that lasts decades. 

Cool roof pigment technology: Where energy efficiency meets innovation 

The science behind reflective coatings represents one of the most significant advances in sustainable roofing technology. Metal roofing naturally deflects heat better than traditional materials, but adding reflective pigments creates a synergistic effect that dramatically improves energy performance. 

Cool roof pigments work by enhancing both solar reflectivity and thermal emittance. When combined with metal's inherent heat deflection properties, these systems can reduce cooling costs by up to 20% according to Department of Energy studies. This isn't just about summer comfort — it's about reducing peak demand on electrical grids and minimizing urban heat island effects. 

The technology becomes even more interesting when you consider color options. Even darker metal roofs with cool pigments outperform traditional asphalt shingles in energy efficiency. This gives architects and contractors unprecedented flexibility in balancing aesthetic preferences with sustainability goals. 

Manufacturing innovations that support sustainability 

Behind every sustainable coating system lies manufacturing technology that extends panel life and reduces environmental impact. Warm-forming technology represents one of the most significant advances in sustainable manufacturing practices. 

By heating steel coils to 120-170°F before roll-forming, manufacturers prevent microfracturing that can compromise coating integrity. This process is especially beneficial for SMP systems, which are more brittle and prone to stress cracking during formation. While not all manufacturers have adopted warm forming technology, those that have demonstrated a commitment to producing panels with extended service life. 

Edge coating applications provide another layer of sustainable protection. By applying rust inhibitors to cut panel edges, manufacturers extend panel life and reduce maintenance requirements. These seemingly small innovations add up to significant environmental benefits when multiplied across thousands of installations. 

Environmental impact and life cycle benefits 

The sustainability story of metal roofing extends far beyond the coating itself. Metal roofing systems offer 100% recyclability with high recycled content in new panels. This contrasts sharply with the 11 million tons of shingle waste generated annually, requiring 300 years to decompose in landfills. 

The 60-year life expectancy of properly coated metal roofing systems represents a massive reduction in production energy and waste compared to traditional materials. When you factor in minimal maintenance requirements over the service life, the environmental benefits become even more compelling. 

Perhaps most importantly, the recover versus replacement advantage cannot be overstated. Installing metal roofing over existing materials eliminates tear-off waste and disposal costs while reducing labor and material requirements. This approach delivers immediate environmental benefits while providing superior long-term performance. 

Practical selection guidance for contractors 

Understanding warranty specifications is crucial for contractors navigating the sustainable coating landscape. The chalk resistance standards tell the real story — SMP allows 50% chalk versus PVDF's 20% limit for roofing applications. For fade performance, the difference is equally dramatic, with SMP allowing 9 Delta E versus PVDF's 5 Delta E. 

These specifications matter because they represent what manufacturers consider acceptable performance degradation. The Louisiana project example shows SMP panels that would technically meet warranty requirements despite obvious visual degradation that most homeowners would find unacceptable. 

Inventory considerations also play a role in sustainable practices. National manufacturers typically stock PVDF coatings as standard offerings, while regional manufacturers may only offer special orders with minimum quantities and extended lead times. This availability difference can influence project sustainability outcomes. 

See the video about coating sustainability on our partner Sherwin-Williams site.

The path forward 

Sustainable paint technologies for metal roof panels represent more than just environmental compliance — they offer competitive differentiation for contractors who understand their value proposition. Market trends clearly favor high-performance systems as energy codes become increasingly stringent, and environmental awareness continues to grow. 

The most successful contractors recognize that sustainable coatings aren't just about meeting today's requirements — they're about future-proofing installations for decades of performance. Whether it's supporting solar panel installations, meeting evolving energy codes or simply delivering the "like new" appearance that clients expect, sustainable paint technologies provide the foundation for long-term success. 

The choice between coating systems ultimately reflects how contractors view their role in the industry. Those focused on first cost will continue to struggle with callbacks and customer satisfaction issues. Those who embrace sustainable paint technologies as a core differentiator will build lasting relationships with clients who value both environmental responsibility and superior performance. 

The question isn't whether sustainable paint technologies will dominate the market — it's whether contractors will position themselves as leaders in this transition or scramble to catch up later. The technology is proven, the benefits are clear and the market is ready. 

Original article source: McElroy Metal