JET Alu-Dunkelklappe WD-80

Aluminium darkening flap WD-80 dome rooflight

For maximum safety in preventive fire protection

The aluminium darkening flap WD-80 can be ideally used to efficiently dissipate toxic smoke fumes in case of fire, especially in buildings where daylight is not necessary or not desired, such as in cinemas.

They are made up of aluminium flaps in a sandwich construction method. These are thermally separated by the sturdy fan framework made of rigid PVC and insulated with 80mm mineral wool. This also makes them particularly energy-efficient.

Irrespective of whether in new buildings or for use in refurbishment projects, the darkening flaps can always be adapted and customised to the given requirements through comprehensive VELUX Commercial accessories. The optional coating of the surface area in RAL colours also contributes to this.

The aluminium darkening flap WD-80 is also suitable for aeration and ventilation. This can be executed either electrically, pneumatically or manually.

  • Aluminium darkening flap with 80mm mineral wool insulation
  • Surface area: Aluminium natural (optional colour according to RAL on request)
  • Fixed or ventable
  • Ventilation possibilities: manual, electric, pneumatic
  • Can be utilised as a SHEV device with the various FIREJET® opener fitting systems – tested according to DIN EN 12101-2
  • Can be utilised as a staircase SHEV device according to LBO with various 24V electric drive units and SHEV central units
  • Deliverable in nominal dimensions 60 x 60 up to 200 x 200 cm / 200 x 300 cm
  • Aluminium darkening flap
    (aluminium / A1 mineral wool / aluminium)
    (components are predominantly non-combustible)
  • Industrial buildings
  • Commercial buildings

Accessories for aluminium darkening flap WD-80


Fall-Through Protection Systems

SHEV and Ventilation