Generic filters
Exact matches only
Search in title
Search in content
Filter by Custom Post Type

Flex Series Metal Siding

Concealed Fastened Metal Wall Collection

This slideshow requires JavaScript.

Flex Series metal siding is a concealed fastened wall panel available in five different options. This panel is a great choice for retail, residential, commercial, mixed-use, civic, and institutional projects.

It is a long-lasting, durable, and sustainable metal panel that also comes in several energy-efficient colors and paint systems. It’s also easy to mix and match profiles, colors, and applications with the Flex Series metal panels, which offers architects and building owners a unique yet flexible design.

AEP-Guide-Large-HomeWall assemblies are rated for fire resistance (UL263) when installed in accordance with UL listings.


Get Inspired!

Download the AEP Span Product Selection Guide and Color Design Guide.


Now available with a high performance clip, offering unlimited thermal movement while reducing chances of oil canning.

  • 12″ coverage wall panel.
  • Wall Installation: Horizontal or Vertical.
  • Gauges: 22ga and 24ga in standard finishes.
  • Refer to AEP Span Color Charts (pdf) (rtf) for full range of color options and paint systems.
  • Custom manufactured panel lengths: 5′-0″ to 20′-0″.
  • Flush Mount and 1/2″ Standoff high performance clips available.
  • Available in two panel attachment configurations – a directly attached fastening flange or clip interlocking hem.
  • ASTM E1592 (wind uplift), ASTM E283* (air infiltration) and ASTM E331* (water infiltration) tested. All testing performed by accredited third-party. * Requires field applied sealant.
  • Wall assemblies rated for fire resistance (UL263) when installed in accordance with UL listings.
  • Oil Canning: All flat metal surfaces can display waviness commonly referred to as “oil canning”. “Oil canning” is an inherent characteristic of steel products, not a defect, and therefore is not a cause for panel rejection. Oil Canning Technical Bulletin (pdf)(rtf)
  • Manufactured in Tacoma, WA.

Dura Tech™ 5000 and Dura Tech™ mx

  • Architectural Color Chart: Dura Tech 5000 & mx (pdf) (rtf)
  • Dura Tech™ 5000/Dura Tech® mx Warranty (PVDF) (pdf) (rtf)

Dura Tech™ nt

Design and Color Solutions
Specialty Prints, Textures & Finishes


  1. Flex Series Horizontal Installation

  2. Flex Vertical Installation