Commercial Buildings
Providing both appealing aesthetics and unparalleled durability, metal has long served as the preferred roofing and siding material for architects and commercial property owners. The low maintenance requirements, 60-year life expectancy, 10-20% energy savings, affordability, performance, and versatility make metal panels ideal for any commercial project.
Life Expectancy
Minimal Maintenance
High Wind Resistance
Energy Efficiency
Quick Installation
Standing Seam and Concealed Fastener Wall Systems
Standing seam roof systems consist of a series of panels connected by raised seams (or vertical legs) above the flat surface. Rather than sitting flush against the roof deck, the seams rise between 1 to 3 inches above the surface and allow the panels to snap together or mechanically interlock without exposed, or visible, fasteners. In addition to providing a sleek, modern look, standing seam systems allow panels to expand and contract with changing temperatures, helping them to last longer and cause less wear and tear on the roof deck.
Concealed fastener wall panels install with clips and/or fasteners placed behind the wall panels.
Standing Seam and Concealed Fastener Wall Systems
Standing seam roof systems consist of a series of panels connected by raised seams (or vertical legs) above the flat surface. Rather than sitting flush against the roof deck, the seams rise between 1 to 3 inches above the surface and allow the panels to snap together or mechanically interlock without exposed, or visible, fasteners. In addition to providing a sleek, modern look, standing seam systems allow panels to expand and contract with changing temperatures, helping them to last longer and cause less wear and tear on the roof deck.
Concealed fastener wall panels install with clips and/or fasteners placed behind the wall panels.
With an opportunity to choose from three distinct Maxima profiles: Maxima, Maxima 1.5 and Maxima ADV, McElroy’s Maxima family of products represents the industry’s broadest selection of vertical leg standing seam systems. In order to meet the varying needs of architects and contractors, each offers unique performance characteristics that enable users to match a Maxima panel to specific aesthetic and performance specifications.
While standing seam roofing systems have been used for generations, 138T and 238T panels feature technological advances in roofing that set a new standard for standing seam performance. Classified as symmetrical standing seam systems, 138T and 238T offer many advantages, including patented recover solutions featuring the industry's best method to recover existing metal or shingle roofs. During the final installation step, the separate batten cap is seamed in place making the 138T & 238T systems some of the most watertight and easiest to install systems on the market.
Medallion-Lok effectively captures the beauty and elegance of a standing seam roof. The narrow 1.75" tall standing seam adds curb appeal to any project and creates crisp, clean visual lines.
Medallion I and Medallion II are architectural standing seam systems that utilize separate batten caps installed over adjoining roofing panels. Medallion I features a narrow batten cap, while Medallion II features a wider cap. Both Medallion systems install over solid decking. Medallion I can also be curved to meet radius panel specifications.
With an opportunity to choose from three distinct Maxima profiles: Maxima, Maxima 1.5 and Maxima ADV, McElroy’s Maxima family of products represents the industry’s broadest selection of vertical leg standing seam systems. In order to meet the varying needs of architects and contractors, each offers unique performance characteristics that enable users to match a Maxima panel to specific aesthetic and performance specifications.
While standing seam roofing systems have been used for generations, 138T and 238T panels feature technological advances in roofing that set a new standard for standing seam performance. Classified as symmetrical standing seam systems, 138T and 238T offer many advantages, including patented recover solutions featuring the industry's best method to recover existing metal or shingle roofs. During the final installation step, the separate batten cap is seamed in place making the 138T & 238T systems some of the most watertight and easiest to install systems on the market.
Medallion-Lok effectively captures the beauty and elegance of a standing seam roof. The narrow 1.75" tall standing seam adds curb appeal to any project and creates crisp, clean visual lines.
Medallion I and Medallion II are architectural standing seam systems that utilize separate batten caps installed over adjoining roofing panels. Medallion I features a narrow batten cap, while Medallion II features a wider cap. Both Medallion systems install over solid decking. Medallion I can also be curved to meet radius panel specifications.
Recover and Retrofit Systems
For commercial property owners confronted with aging or deteriorating roofs, a complete tear-off and replacement may not be an economical or viable long-term solution. This is especially true for roofs with 1/4:12 slope or greater with conventional membranes that require ongoing maintenance due to moisture damage and UV degradation.
Owners of 30-40 year old pre-engineered buildings also benefit greatly from a new roof that installs directly over existing metal panels. Fortunately, recover and retrofit systems like metal-over-metal or metal-over-shingles provide the benefits of a standing seam metal roof without the hassle of replacing the roof entirely. Our systems can be adapted to the existing roof’s structural support system to provide long-term life expectancy and reduced life-cycle costs while also enhancing the property’s curb appeal.
Recover and Retrofit Systems
For commercial property owners confronted with aging or deteriorating roofs, a complete tear-off and replacement may not be an economical or viable long-term solution. This is especially true for roofs with 1/4:12 slope or greater with conventional membranes that require ongoing maintenance due to moisture damage and UV degradation.
Owners of 30-40 year old pre-engineered buildings also benefit greatly from a new roof that installs directly over existing metal panels. Fortunately, recover and retrofit systems like metal-over-metal or metal-over-shingles provide the benefits of a standing seam metal roof without the hassle of replacing the roof entirely. Our systems can be adapted to the existing roof’s structural support system to provide long-term life expectancy and reduced life-cycle costs while also enhancing the property’s curb appeal.
Our Trap-Tee system may be your most economical option, depending on your project specifics.
McElroy's 2 3/4" tall symmetrical Trap-Tee system is a trapezoidal site-formed, mechanically seamed system designed to resolve the three major shortcomings of trapezoidal standing seam roof systems: leaking endlaps, low wind uplift capacity, and difficult to repair.
McElroy Metal has a patented 238T frameless Metal-Over-Metal recover option, providing a low-cost recover solution over existing exposed fastened panels.
This system utilizes McElroy's symmetrical 238T standing seam panel. It provides a long-term solution to existing metal roofs that have completed their service life at a cost that is competitive with single-ply recover, while lasting two (2) to four (4) times longer.
McElroy Metal’s 138T Shingle Recover System provides a long-term and economical solution for commercial building owners and homeowners. This innovative system installs directly over existing shingles and the patented clips create an energy saving Above Sheathing Ventilation (ASV) airspace between the existing roof and new 138T roof.
By design, flat roofs with conventional membranes present a host of problematic conditions. For example, their inability to shed rainwater promotes premature failure of the weathering membrane and its substrate.
Our retrofit metal roofing products present the opportunity to add slope to existing roofs with minimal occupant intrusion while offering a new 60-year roof life expectancy.
Our Trap-Tee system may be your most economical option, depending on your project specifics.
McElroy's 2 3/4" tall symmetrical Trap-Tee system is a trapezoidal site-formed, mechanically seamed system designed to resolve the three major shortcomings of trapezoidal standing seam roof systems: leaking endlaps, low wind uplift capacity, and difficult to repair.
McElroy Metal has a patented 238T frameless Metal-Over-Metal recover option, providing a low-cost recover solution over existing exposed fastened panels.
This system utilizes McElroy's symmetrical 238T standing seam panel. It provides a long-term solution to existing metal roofs that have completed their service life at a cost that is competitive with single-ply recover, while lasting two (2) to four (4) times longer.
McElroy Metal’s 138T Shingle Recover System provides a long-term and economical solution for commercial building owners and homeowners. This innovative system installs directly over existing shingles and the patented clips create an energy saving Above Sheathing Ventilation (ASV) airspace between the existing roof and new 138T roof.
By design, flat roofs with conventional membranes present a host of problematic conditions. For example, their inability to shed rainwater promotes premature failure of the weathering membrane and its substrate.
Our retrofit metal roofing products present the opportunity to add slope to existing roofs with minimal occupant intrusion while offering a new 60-year roof life expectancy.
Find a Distributor/Contractor Near You
Metal roofing and wall panels can deliver long-term cost savings and aesthetic appeal to your commercial property. To explore your options and find the product that meets your architectural and budgetary needs, contact a McElroy Metal distributor or contractor in your area today. We can’t wait to help you transform your business.
Curved Roofing Systems
Whether used as a design accent or for an entire roof, curved radius roofing systems are an attractive choice for many commercial projects. Often fabricated on the job site, curved roofing is a standing seam system that provides an ideal solution for curved roofs, arched canopies, and walkway covers. Since the panels are curved on the jobsite, they have a lower landed transportation cost and provide a better opportunity for an exact fit.
Curved Roofing Systems
Whether used as a design accent or for an entire roof, curved radius roofing systems are an attractive choice for many commercial projects. Often fabricated on the job site, curved roofing is a standing seam system that provides an ideal solution for curved roofs, arched canopies, and walkway covers. Since the panels are curved on the jobsite, they have a lower landed transportation cost and provide a better opportunity for an exact fit.
Medallion I curving is performed on the jobsite by roofing contractors using rented curving equipment. Curving equipment is available for rent through Developmental Industries at mcelroyseamers.com, a website created just for McElroy customers.
Medallion I curving is performed on the jobsite by roofing contractors using rented curving equipment. Curving equipment is available for rent through Developmental Industries at mcelroyseamers.com, a website created just for McElroy customers.
Substructural Components
McElroy Metal manufactures an extensive line of cold-formed substructural components, including Cees, Zees, Eave Struts, Sub-Girts, Angles, Hats, and Channels.
Cees, Zees, and Eave Struts are available in a wide variety of industry-norm standard punching patterns. Custom punching is also available. McElroy Zees are manufactured in non-symmetrical flange sections, which makes lapping and installation easier.
Red oxide is standard for most McElroy manufacturing facilities. Galvanized (G-90) is also available for popular sizes and is the standard finish in our Adelanto, California. This wide range of availability offers unlimited design flexibility in a quality product.
Don't forget to ask About Our Substructural XL Product!
McElroy Metal's Substructural XL components generate labor and material savings, boosting sales revenue, while enhancing bottom-line performance.
- 10, 12, 14, and 16 gauge members with webs up to 24" enable value engineering and optimization opportunities.
- Factory flange notching reduces costly secondary fabrication and/or field torching and cutting.
- Flexible punching capabilities
reduces costly field drilling.
Exposed Fastener Panel Options
Exposed fastened metal roof and wall panels represent the most economical option for commercial projects. These systems consist of overlapping panels that are fastened directly to the roof deck or wall framing through the face of the metal. They are called “exposed” because the fastener head remains visible once installed. Exposed fastener panels are typically wider than standing seam panels, meaning that fewer panels (and less labor) will be needed to cover the roof or wall area.
Exposed Fastener Panel Options
Exposed fastened metal roof and wall panels represent the most economical option for commercial projects. These systems consist of overlapping panels that are fastened directly to the roof deck or wall framing through the face of the metal. They are called “exposed” because the fastener head remains visible once installed. Exposed fastener panels are typically wider than standing seam panels, meaning that fewer panels (and less labor) will be needed to cover the roof or wall area.
Multi-Rib is McElroy’s proprietary version of the industry’s standard R-Panel and is a multi-use roof and wall rib panel primarily used in pre-engineered metal building and commercial applications. An optional Purlin Bearing Leg (PBR) rests on purlins and provides support for fastening the panel lap.
While quickly communicating their high-strength performance attributes, McElroy’s corrugated metal panels are reminiscent of yesteryear and simpler times. Consistent, rounded corrugations make Multi-Cor and M-Cor ideal panels to achieve nostalgic appeal whether installed as a wall, roof or interior accent panel.
Multi-Rib is McElroy’s proprietary version of the industry’s standard R-Panel and is a multi-use roof and wall rib panel primarily used in pre-engineered metal building and commercial applications. An optional Purlin Bearing Leg (PBR) rests on purlins and provides support for fastening the panel lap.
While quickly communicating their high-strength performance attributes, McElroy’s corrugated metal panels are reminiscent of yesteryear and simpler times. Consistent, rounded corrugations make Multi-Cor and M-Cor ideal panels to achieve nostalgic appeal whether installed as a wall, roof or interior accent panel.
Soffit, Fascia, and Canopy System Options
Our pre-formed soffit, fascia, and canopy panels, designed for both vertical and horizontal applications, feature a variety of pan conditions. Whether being used for roof eaves, porch ceilings, or canopy installations, metal paneling can provide an elegant finishing touch to any commercial project.
Soffit, Fascia, and Canopy System Options
Our pre-formed soffit, fascia, and canopy panels, designed for both vertical and horizontal applications, feature a variety of pan conditions. Whether being used for roof eaves, porch ceilings, or canopy installations, metal paneling can provide an elegant finishing touch to any commercial project.
Matrix soffit panels add an elegant touch to your commercial projects. Matrix colors match our roof and wall panels while offering a choice between 12 and 16 inch wide coverage.
Matrix is available in a wide variety of gauges with Silicone Modified Polyester (SMP) and Kynar 500® (PVDF) paint systems and colors.
Matrix soffit panels add an elegant touch to your commercial projects. Matrix colors match our roof and wall panels while offering a choice between 12 and 16 inch wide coverage.
Matrix is available in a wide variety of gauges with Silicone Modified Polyester (SMP) and Kynar 500® (PVDF) paint systems and colors.
Metal Shingles and Simulated Tile
Combining the aesthetic look and curb appeal of traditional shingles, slate, cedar, or ceramic tiles with all the performance benefits of metal, these panelized systems have become a popular option for commercial properties that desire a fast, easy, and affordable roofing solution.
Available in a wide variety of styles and colors, metal shingles look so much like the real thing that most observers won’t be able to tell the difference. Even better, they’re more durable and energy efficient than their asphalt shingle counterparts.
Metal Shingles and Simulated Tile
Combining the aesthetic look and curb appeal of traditional shingles, slate, cedar, or ceramic tiles with all the performance benefits of metal, these panelized systems have become a popular option for commercial properties that desire a fast, easy, and affordable roofing solution.
Available in a wide variety of styles and colors, metal shingles look so much like the real thing that most observers won’t be able to tell the difference. Even better, they’re more durable and energy efficient than their asphalt shingle counterparts.
Insulated Metal Panels
The cutting edge of metal building products, Insulated Metal Panels (IMPs) are a composite panel consisting of a metal skin exterior and a polyisocyanurate insulating foam core. They offer superior weather-tightness and up to a three-hour fire rating, making them an ideal solution for structures with exacting climate-control needs.
Formed by a continuously poured-in-place manufacturing process, our state-of-the-art Green Span Profile panels are available in 2, 2.5, 3, 4, 5, and 6-inch thicknesses and can be installed both vertically and horizontally to provide a perfectly desired architectural look.
Commercial Metal Roofing and Wall Panels FAQ
Unlike asphalt shingles, which need to be replaced every 12-20 years, metal roofing can last up to 60 years with very little need for maintenance. For many homeowners, a metal roof is a true “one and done” solution they won’t have to worry about replacing in the future.
Learn MoreThanks to a combination of ASV (Above Sheathing Ventilation) and special coating designed to reflect the sun’s energy and release absorbed heat, metal roof panels can reduce energy costs by as much as 20% compared to asphalt shingles.
Learn MoreMetal roofing actually reflects much of the sun’s heat and energy. While conventional shingles absorb much of the sun’s heat, metal roofing can actually reduce cooling energy costs by as much as 20%. That’s because the coating used on modern metal roof panels incorporates special pigments that reflect the sun’s energy and release heat that is absorbed throughout the day.
The odds of a lightning strike hitting a metal roof are the same as any other roof, regardless of material. In the event that there is a lightning strike, however, metal roofing will not ignite and catch fire since it is not combustible.
Read MoreFar from it. Studies conducted by the Insurance Institute for Business & Home Safety (IBHS) have found that metal roofing is far less likely to be punctured by hail than conventional asphalt shingles, withstanding even golf ball-sized hailstones with only cosmetic damage.
Metal roofing consistently outperforms shingles when it comes to resisting harsh elements. In addition to being fire and hail resistant, metal roofs are also effective against extreme winds. Many insurance companies recognize the durability of metal roofing, offering discounts for structures with metal roofs.
A class 4 roof is an impact-resistant roof and will perform will when exposed to hail.
Learn MoreGet our best tips and tricks for how to measure a roof for metal roofing.
Learn MoreMetal roofing is an energy efficient, environmentally friendly roofing material that offers cost savings and a long lifespan.
Learn MoreIt is safe to walk on a metal roof. Get answers to the most common questions about how to walk on metal roof tiles.
Learn MoreGet the metal roofing pros and cons homeowners need to know to make an informed roofing decision.
Learn MoreMetal roof systems offer homeowners in hail prone areas a long lasting, durable roofing solution.
Learn MoreWhile it is impossible to call any roof hurricane proof, a properly designed metal roofing system can be capable of handling wind speeds in excess of what is normally experienced in hurricane-prone regions.
Learn MoreYes! Get four reasons why they are.
Learn MoreAsphalt saturated, roofing-tar paper, or synthetic?
Learn MoreYes! Solar panels and metal roofing are a great match!
Learn MoreOil canning is something you see when a metal panel appears wavy or distorted.
Learn MoreYes! Installing metal roofing over existing shingles is often an excellent way for building owners to not only get a long-lasting, high-performance roof but also to save on roof tear-off expenses. However, sometimes tearing off the existing roof is a necessary step. Please click the link below for more information.
Learn MoreInstalling a new metal roof on your home is a big project for most homeowners. The expense and expectations for a new metal roof underscore the importance of finding a trusted roofing contractor to ensure proper installation. We've written an article to help.
Read MoreKnowing the signs that it’s time for a new roof and available options helps you make an informed decision when the time comes.
Commercial Metal Roofing and Wall Panels on our Blog
