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Flex Series Metal Siding

Concealed Fastened Metal Wall Collection

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Flex Series metal siding is a concealed fastened siding 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-HomeSiding 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.
AEP Span Color and Panel Matrix PDF | RTF

  • 12″ coverage siding.
  • Siding Installation: Horizontal or Vertical.
  • Gauges: 22ga in standard finishes. 20ga available by special order.
  • Custom manufactured panel lengths: 5′-0″ to 25′-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.
  • All structural performance data is contained within Building Code Approval Report.
  • 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.

⇒Click Here for Building Code Approval Reports. IAPMO-logo

  • Standard Offer EPD (pdf) (rtf)
  • Domestically Sourced High Recycled Content EPD (pdf) (rtf)
  • HPD 3rd-Party Verified for ZINCALUME® Plus coated products (pdf) (rtf)
  • LEED v3 Regional Material (pdf)
  • LEED v3 Recycled Content Letter (pdf) (rtf)
  • LEED v4 Recycled Content Letter (pdf) (rtf)

⇒Click Here for additional LEED & LBC Information.

  • Revit Models:
    • Flex Series 1.2FX 10-12 (zip)
    • Flex Series 1.2FX20-12 (zip)
    • Flex Series 1.2FX30-12 (zip)
    • Flex Series 1.2FX40-12 (zip)

  1. Flex Series Horizontal Installation

  2. Flex Vertical Installation

  • Dura Tech™ 5000/Dura Tech® mx Warranty (PVDF) (pdf) (rtf)
  • Dura Tech® nt Warranty (pdf) (rtf)
  • ZINCALUME Plus Warranty (pdf) (rtf)
  • AEP Span Color and Panel Matrix (pdf) (rtf)
  • Performance Data (SRI and LRV Values)  (pdf) (rtf)

⇒Click Here for additional Color and Warranty Information.