Commercial Metal Roofing and Wall Panels

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 combination of affordability, performance, and versatility makes metal panels an ideal choice for any commercial project.

Why Choose Metal?

Metal roofing offers an attractive alternative to other commonly used materials. While other options may have lower upfront costs, they often have much shorter life expectancy and require frequent maintenance. Asphalt shingles, for instance, are vulnerable to shrinking, eroding, and cracking, especially in regions of the country where they’re exposed to extreme weather conditions.

Capable of lasting 60 or more years with minimal maintenance or repairs, metal roofing can withstand wind gusts of up to 140 miles per hour and will not corrode or crack due to seasonal weather. A metal roof also provides both fire resistance and energy efficiency, reducing cooling costs by 10-25%.

Standing Seam and Concealed Fastener Wall Systems

Standing seam roof systems consist of a series of panels that are 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 are installed with clips and/or fasteners that are placed beneath the wall panels, so they are hidden from view.


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.
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138T & 238T

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. 138T and 238T systems are classified as symmetrical standing seam systems and offer many advantages including patented recover solutions featuring the industry's best method to recover existing metal or shingle roofs. 138T and 238T panels are mechanically seamed along with the seam caps.

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Meridian has it all! An aesthetically pleasing, snap-together, standing seam roof panel that is economical and easy to install. With no need for clips, Meridian panels are simply attached to the roof deck with pancake head fasteners. Always an excellent choice! 
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Medallion-Lok effectively captures the beauty and elegance of a standing seam roof. Adding curb appeal to any project, the narrow 1.75" tall standing seam creates crisp, clean visual lines. Medallion-Lok is also an excellent choice for larger, custom homes.
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MasterLok-90 (also referred to as ML-90) is a snap together trapezoidal standing seam system and MasterLok-FS is a mechanically seamed trapezoidal system. Both are designed for projects with slopes as low as 1/4:12. 
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Mirage II

Mirage II is a concealed fastener roofing panels with 8" on-center ribs. Mirage II ribs are 1 3/4" high. Mirage II can be installed over solid deck or substructural members.
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Medallion I/Medallion II

Medallion I and Medallion II are architectural standing seam systems which utilize separate batten caps that are installed over adjoining roofing panels. Medallion I features a narrow batten cap while Medallion II features a wider cap. Both Medallion systems are installed over solid decking. Medallion I can also be curved to meet radius panel specifications.
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Instaloc is a snap-together standing seam system that features a 1” seam and is installed with concealed clips. Instaloc is designed to be used with solid decking and the low profile seam makes the panel an excellent option for light commercial and residential applications.
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Combining aesthetics and strength in one panel, McElroy Metal offers MSR, a concealed fastener wall panel. MSR's bold profile adds curb appeal to most any project while providing engineering and weathertightness characteristics demanded by architects and owners. 

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If specifications call for a textured wall design without visible fasteners, the Wave Panels offer an excellent solution.

Wave Floating is installed horizontally utilizing hidden clips and fasteners for panel lengths greater than 40', resulting in a monolithic and aesthetically pleasing appearance.

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Marquee Lok

The Marquee Family of products are designed to complement McElroy roof and wall panels.

Taking a single vendor approach to walls, roofing and accessories, Marquee panels simplify every step of the building process

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McElroy Metal's Standing Seam Systems

McElroy Metal's Concealed Fastener Wall Systems

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 can 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.

138T Shingle Recover

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.

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238T Metal-Over-Metal Recover

McElroy Metal has a patented 238T frameless Metal-Over-Metal recover option that provides a low cost recover solution over existing exposed fastened panels. This system utilizes McElroy's easily repairable symmetrical 238T standing seam panel while providing a long-term solution to existing metal roofs that have completed their service life at a cost that is competitive with single-ply recover and will last two (2) to four (4) times longer.

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Low Slope to Steep Slope Metal Roofing

By design, flat roofs with conventional membranes have a host of problematic conditions. For example, their inability to shed rainwater promotes premature failure of the weathering membrane and its substrate.

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McElroy Metal's Recover and Retrofit Roofing System Options

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.

Maxima 1.5 & Maxima ADV

McElroy's Maxima 1.5 and Maxima ADV panels are curved on the jobsite by a McElroy Metal Roll Forming Technician.  Contact your McElroy representative for pricing and details. 

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138T & 238T

McElroy's popular 138T and 238T symmetrical standing seam systems are also available curved. Panels are curved on the jobsite by a McElroy Metal Roll Forming Technician.  Contact your McElroy representative for pricing and details. 

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Medallion I

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, a website created just for McElroy customers.

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McElroy Metal's Curved Roofing Systems Options

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 standing wall area.


Max-Rib is a low profile (3/4") panel that is well suited for commercial, agricultural and residential applications. Max-Rib is utilized extensively on post frame buildings as well as residential homes.
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Many post frame panels look identical from manufacturer to manufacturer. Mesa is a patent and copyright protected panel that can't be copied and features a nearly invisible lap offering a distinctive look.
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R-Panel is a multi-use wall and roof panel used primarily in pre-engineered metal building applications. An optional Purlin Bearing Leg (PBR) rests on purlins and provides support for fastening the panel lap.

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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 applications. An optional Purlin Bearing Leg (PBR) rests on purlins and provides support for fastening the panel lap.
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Multi-Cor & M-Cor

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.
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McElroy’s 5V panels are 24" wide and incorporate a classic design that will add beauty to any project. 5V is also commonly installed as an interior liner or accent panel.
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Mega-Rib is a 7.2 exposed fastener panel that provides optimum strength and spanning capabilities. Mega-Rib is a metal roof and wall panel that is well suited for industrial and commercial applications.
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U-Panel is an exposed fastener wall and roof panel. With a ¾” (approximate) rib height and 6” on center rib spacing, U-panel offers a lower profile and softer appearance than R-Panel or Multi-Rib. U-Panel is also widely utilized as a liner panel or partition wall.
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Mini-Rib Wall Only

The symmetrical design of McElroy’s Mini-Rib exposed fastener panel make it an appealing profile for soffit, liner and fascia applications.

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Multi-V Wall Only

Multi-V is an exposed fastener wall panel designed so that fasteners are placed in the valleys, making them visually less apparent.

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McElroy Metal's Exposed Fastener Panel Options for Commercial Applications

Soffit, Fascia, and Canopy System Options

Before installing metal roof and wall panels, it’s recommended to use the same material for a commercial project’s soffit, fascia, and canopy needs. These pre-formed panels are designed for both vertical and horizontal applications and 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.


FW Panel is a 1 1/2" deep flush metal panel designed for use in vertical and horizontal applications.

Available 12" panel width options include: vee grooves, inverted plank, reveals of up to 3", or a traditional smooth appearance. Regardless of the pattern, the 1 1/2" depth and the tongue-and-groove engagement remain the same.

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Marquee-Lok/Marquee II

The Marquee Family of products are designed to complement McElroy roof and wall panels.

Taking a single vendor approach to walls, roofing and accessories, Marquee panels simplify every step of the building process. You achieve exactcolor match, coordinated material delivery, and the assurance of McElroy quality across all components of the project.

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Matrix soffit panels add an elegant touch to any commercial or residential project. Matrix is available in 12 and 16 inch widths and in colors that match McElroy's wall and roof panels.

The Matrix soffit system will add an elegant touch to any commercial or residential project. Matrix is available in a wide variety of gauges with Silicone Modified Polyester (SMP) and Kynar 500® (PVDF) colors.

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MCP (McElroy Canopy Panel) is a concealed fastener panel designed to meet the demands of canopy installations. MCP is an excellent and desirable application for banks, drive-thru restaurants, convenience stores or any other building type requiring attractive and functional canopy systems.
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McElroy Metal's Soffit, Fascia, and Canopy System Options

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 are becoming a popular option for commercial properties looking for 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.

Met-Tile - Metal Roof Tiles

Met-Tile is lightweight, energy efficient and aesthetically attractive. A Met-Tile roof looks so much like tile, most people are surprised to learn that they are actually metal roof tiles
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Milan (Steel Shingles)

Milan steel shingles add beauty and curb appeal to any home or light-commercial project. Milan provides the aesthetic appearance of shingles, slate or shake with all the benefits of metal.
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McElroy Metal's Specialty Roofing Panel Options

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.

Green Span Profiles

Green Span Profiles is a McElroy Metal Joint Venture company that manufactures Insulated Metal Panels (IMP’s) for walls in thickness from 2” to 6”. Green Span’s Ridgeline roof panel, featuring a 238T symmetrical seam, is available in thicknesses from 2 ½” to 5”. 

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McElroy Metal's Insulated Metal Panel

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.

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Metal 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.

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Far 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.

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Get our best tips and tricks for how to measure a roof for metal roofing.

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Metal roofing is an energy efficient, environmentally friendly roofing material that offers cost savings and a long lifespan.

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It is safe to walk on a metal roof. Get answers to the most common questions about how to walk on metal roof tiles.

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Yes! Get four reasons why they are.

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Asphalt saturated, roofing-tar paper, or synthetic?

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Yes! Solar panels and metal roofing are a great match!

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Oil canning is something you see when a metal panel appears wavy or distorted.

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Yes! Installing metal roofing over existing shingles is an excellent way for building owners to not only maximize the longevity of their new roof but also to save on roof tear off expenses.

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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.

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