JET Stahl-Alu-Verbund Aufsetzkranz

Steel-aluminium integrated AK upstand

The perfect upstand for flat metal roofs


The steel aluminium integrated AK upstands are the ideal basic elements for use in flat metal roofs (e.g. thermal or insulated roofs) and have proven themselves in practice for many years.


They are made of steel on the inside and aluminium on the outside, and have a thermal separator strip and flat adhesive base flange. This upstand is fitted with 60mm mineral wool for high thermal insulation.


The steel aluminium integrated AK upstands optimally combine the various requirements, such as SHEV function and energy efficiency, and can therefore be used in a variety of ways.

  • Steel-aluminium composite upstand (double-skinned) with 60mm mineral wool insulation
  • Surfaces: Inside RAL 9002 / outside aluminium natural(optional colour according to RAL on request)
  • Can be used for SHEV devices with the various FIREJET® opener fitting systems – tested according to DIN EN 12101-2
  • Can be used for staircase SHEV devices in accordance with LBO with various 24V electric drives and SHEV control centres
  • Available in the nominal dimensions 90 x 90 / 90 x 120 cm to 250 x 250 cm / 200 x 300 cm
  • Available in the upstand heights: 30 and 40 cm
  • METAL-AK-SE:
    (sheet steel / A1 mineral wool / aluminium)
    (components predominantly non-combustible)
  • Industrial buildings
  • Commercial buildings

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