Shop
      Contact Us

      Curved Standing Seam Metal Roofing

      Engineered curved panels delivering smooth radius transitions, architectural interest, and long-lasting standing seam performance.

      Curved standing seam roofing uses radius-formed panels to create smooth, flowing rooflines for arched, barrel, and multi-curved designs. McElroy Metal's curved panel systems offer structural strength, weathertight seams, and precise shaping, delivering exceptional performance for architectural features, entryways, canopies, and complex roof geometries.

      Renderings & Profiles

      Color Charts

      Great for:

      walls-icon
      WALLS
      roofs-icon
      ROOFS
      residential-icon
      RESIDENTIAL
      commercial-icon
      COMMERCIAL
      Curved Maxima 1 1/2" Panel
      Curved Maxima 2" Panel
      Curved 138T Panel
      Curved 238T Panel
      Curved Medallion-Lok Panel
      maxima_2_flat_DRAWING
      Curved Standing Seam Roofing Project

      Curved Standing Seam Roofing Options

      McElroy Metal offers five curved standing seam profiles spanning tight architectural radii down to 2'6" and large structural spans up to 25'. The sections below identify which system fits your radius requirements, building type, and installation method — and connect you with the engineering support to confirm your specification.

      Request a Sample Find a Distributor or Contractor Find Your Rep

      Curved Standing Seam Ideal Applications

      • Barrel roofs and curved roof forms.

      • Arched entryways, canopies, and covered walkways.

      • Architectural accents and feature roofs.

      • Retail façades and mixed-use developments.

      • Municipal, civic, and educational buildings.

      • Hospitality and entertainment venues seeking distinctive roof geometry.

      See 3D Textures Here
      Curved 138T Panel Project
      Curved Medallion-Lok Panel Project
      Curved Maxima 1 1/2" and ADV Project in Slate Gray
      Curved 138T Panel in Roman Blue
      McElroy Logo Emp Ownd Opt1_BLK-RED

      Why Choose McElroy Metal for Curved Standing Seam Roofing

      McElroy Metal is an employee-owned manufacturer with more than six decades of experience producing high-quality metal roofing, wall systems, and substructural components. Our nationwide manufacturing and service center network ensures consistent availability, responsive support, and dependable delivery. Built on a culture of craftsmanship and partnership, our products are engineered for long-term durability and trusted performance on projects of every size.

      McElroy Metal’s Curved Standing Seam Systems

       McElroy Metal’s curved standing seam systems are engineered for precise radius performance and seamless architectural integration. Factory-curved panels reduce field adjustments and deliver smooth, continuous curves with reliable, long-term performance. 

      McElroy Metal’s Curved Standing Seam Systems

       McElroy Metal’s curved standing seam systems are engineered for precise radius performance and seamless architectural integration. Factory-curved panels reduce field adjustments and deliver smooth, continuous curves with reliable, long-term performance. 

      Maxima ADV
      138T
      Medallion I
      Maxima 1.5
      238T

      Maxima ADV

      McElroy’s Maxima ADV non-symmetrical, vertical leg,  mechanically seamed, standing seam system features a 2" tall seam.

      Maxima ADV panels are fabricated/curved onsite by a McElroy Metal Roll Forming Technician.

      After the completion of the seaming machine operation, the panels present a double lock (180 degree) profile.  

      Learn More

      138T

      Ease of installation and ability to accept tighter radius are just two benefits of our symmetrical, mechanically seamed, vertical leg 138T panel.

      McElroy’s 138T system features a 1 3/8" tall seam and separate batten cap and is manufactured onsite by a McElroy Metal roll forming technician.

       After completion of the seaming operation, the panel and batten resemble a "T" shape.

      Learn More

      Medallion I

      McElroy’s Medallion I standing seam system is comprised of a panel and separate batten cap. There are two main differences between this system and our other curved roofing systems:  

      1. The roofing contractor (as opposed to McElroy) completes the curving process onsite with equipment they are responsible for renting  from Developmental Industries.

      2. Medallion I is our only curved product that offers a snap on batten instead of a mechanically seamed batten. 

      Learn More

      Maxima 1.5

      McElroy’s Maxima 1.5 non-symmetrical, vertical leg, mechanically seamed, standing seam system features a 1.5" tall seam.

      Maxima 1.5 panels are fabricated/curved onsite by a McElroy Metal Roll Forming Technician.

      After the completion of the seaming machine operation, the panels present a double lock (180 degree) profile.  

      Learn More

      238T

      Ease of installation and ability to accept tighter radius are just two benefits of our symmetrical, mechanically seamed, vertical leg 238T panel.

      McElroy’s 238T features a 2 3/8" tall seam and separate batten cap and is manufactured onsite by a McElroy Metal roll forming technician.

      After completion of the seaming operation, the panel and batten resemble a "T" shape.

      Learn More

      Maxima ADV

      McElroy’s Maxima ADV non-symmetrical, vertical leg,  mechanically seamed, standing seam system features a 2" tall seam.

      Maxima ADV panels are fabricated/curved onsite by a McElroy Metal Roll Forming Technician.

      After the completion of the seaming machine operation, the panels present a double lock (180 degree) profile.  

      Learn More

      138T

      Ease of installation and ability to accept tighter radius are just two benefits of our symmetrical, mechanically seamed, vertical leg 138T panel.

      McElroy’s 138T system features a 1 3/8" tall seam and separate batten cap and is manufactured onsite by a McElroy Metal roll forming technician.

       After completion of the seaming operation, the panel and batten resemble a "T" shape.

      Learn More

      Medallion I

      McElroy’s Medallion I standing seam system is comprised of a panel and separate batten cap. There are two main differences between this system and our other curved roofing systems:  

      1. The roofing contractor (as opposed to McElroy) completes the curving process onsite with equipment they are responsible for renting  from Developmental Industries.

      2. Medallion I is our only curved product that offers a snap on batten instead of a mechanically seamed batten. 

      Learn More

      Maxima 1.5

      McElroy’s Maxima 1.5 non-symmetrical, vertical leg, mechanically seamed, standing seam system features a 1.5" tall seam.

      Maxima 1.5 panels are fabricated/curved onsite by a McElroy Metal Roll Forming Technician.

      After the completion of the seaming machine operation, the panels present a double lock (180 degree) profile.  

      Learn More

      238T

      Ease of installation and ability to accept tighter radius are just two benefits of our symmetrical, mechanically seamed, vertical leg 238T panel.

      McElroy’s 238T features a 2 3/8" tall seam and separate batten cap and is manufactured onsite by a McElroy Metal roll forming technician.

      After completion of the seaming operation, the panel and batten resemble a "T" shape.

      Learn More

      Curved Panel Radius Comparison

      Steel vs. Aluminum Panel Radius

      Panel Min. Radius (Steel) Min. Radius (Aluminum) Notes
      138T 9' 9' Symmetrical, architectural
      238T 24' 14' Symmetrical, structural/architectural
      Maxima 1.5" 12' 10' Non-symmetrical, structural/architectural
      Maxima ADV 25' 20' Non-symmetrical, structural/architectural
      Medallion I 2'6" N/A Architectural
      map-red

      Find a Distributor / Contractor Near You

      Whether you’re building a new home or planning renovations, a metal roof can deliver long-term cost savings and comfort. To explore your options and find the product that meets your aesthetic and budgetary needs, contact a McElroy Metal distributor or contractor in your area today. We can’t wait to help make your dream home a reality.

      Find a Contractor

      Frequently Asked Questions

      The questions below address common considerations and help guide product selection for your project.

      What radius options are available for curved panels?
      McElroy Metal can form both large and tight radii depending on the panel profile and project requirements. Custom radius specifications are reviewed during the design process.
      Are curved panels mechanically seamed?
      Most curved applications use mechanically seamed profiles due to the reinforced seam strength and watertight performance they provide; however, our Medallion I curved system uses a snap-on seam cover.
      Can curved panels be used in structural roofing applications?
      Yes. Many curved standing seam systems can serve structural roles, depending on the panel type, gauge, and radius. Project-specific engineering is recommended.
      Do curved panels require special installation tools?
      Installation follows standard standing seam practices, though some projects may require specialized curving equipment or onsite forming.
      Can curved panels match the finish of the rest of the roof?
      Absolutely. Curved panels use the same color and coating systems as straight panels for seamless visual integration.
      What radius options are available for curved panels?
      McElroy Metal can form both large and tight radii depending on the panel profile and project requirements. Custom radius specifications are reviewed during the design process.
      Can curved panels be used in structural roofing applications?
      Yes. Many curved standing seam systems can serve structural roles, depending on the panel type, gauge, and radius. Project-specific engineering is recommended.
      Can curved panels match the finish of the rest of the roof?
      Absolutely. Curved panels use the same color and coating systems as straight panels for seamless visual integration.
      arrow_back arrow_forwards close
      lightboximage lightboximage