HAILSTOP double-skinned

Highest possible hail protection for your dome rooflight

The ever increasing number of storms always poses a high risk for skylights on industrial flat roofs. Hail can particularly quickly lead to considerable damage in the glazing. We have developed the HAILSTOP dome rooflight here at VELUX Commercial so that you do not have to worry about hail anymore.

These comprise glazing is completely made of polycarbonate which makes them extremely stable and robust. This has also been proven by the test methods which we have applied to our light dome. With a clear result: The highest hail resistance class of HW5 was utilised to classify the areas for both the water tightness and mechanical properties as well as the optics and light transmission. This means that the dome rooflight can remain completely undamaged even with hailstones up to 5 cm.

But these are by no means all the advantages of HAILSTOP. It is also compatible with a wide range of accessories and can – with the corresponding opener accessories – be utilised for both ventilation and also smoke extraction. Whether in new construction or refurbishment: the HAILSTOP is always a good solution for your flat roof.

  • Double-skinned
  • Two glazing variants: opal/clear or clear/clear
  • Fixed or ventable
  • Ventilation possibilities: manual, electric, pneumatic
  • Can be utilised as SHEV system 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 from 60 x 60 cm up to 270 x 270 cm
  • U-value = 2.7 W/m2K according to DIN EN 1873:2006/DIN 4108-4
  • Ut = 3.0 W/m2K according to DIN EN 1873:2014 (for horizontal installation)
  • Urc,ref300 = 1.76 W/m2K according to DIN EN 1873:2014
  • Light transmission TL: double-skinned opal: 74% / clear: 86%
  • Fire Class: B-s2, d0, flame retardant according to EN 13501-1
  • Plastic glazing (polycarbonate / polycarbonate)
  • Industrial buildings
  • Commercial buildings

Accessories for HAILSTOP double-skinned dome roof lights


Fall-Through Protection Systems

SHEV and Ventilation