HAILSTOP ROUND dome rooflight triple-skinned

The triple-skinned, round hail stop dome rooflight

The HAILSTOP ROUND is one of the most robust dome rooflights in the VELUX Commercial range. Its complete glazing made of polycarbonate makes it extremely sturdy. This means that it can provide safety even in severe storms with hail without suffering any damage. We can guarantee this due to testing for the hail resistance class. The HAILSTOP ROUND was comprehensively awarded HW5 – the best possible award. In the areas of water tightness, mechanics and light transmission, as well as optics, our dome rooflight can even withstand hailstones of up to 5cm without any problems.

The HAILSTOP ROUND is also available as a ventable version and with openers for smoke extraction as a SHEV system (according to LBO). Select the required components for your special project from our large accessories range.

  • Triple-skinned
  • Two glazing variants: opal/clear/clear or clear/clear/clear
  • Fixed or ventable
  • Ventilation possibilities: manual, electric, pneumatic
  • Can be utilised as a staircase SHEV device according to LBO with various 24V electric drive units and SHEV central units
  • Deliverable in diameters from 60cm up to 240cm
  • U-value = 1.8 W/m2K according to DIN EN 1873:2006/DIN 4108-4
  • Ut = 2.0 W/m2K according to DIN EN 1873:2014 (for horizontal installation)
  • Urc,ref300 = 1.39 W/m2K according to DIN EN 1873:2014
  • Light transmission TL: double-skinned opal: 69% / clear: 81%
  • Fire Class: B-s2, d0, flame retardant according to EN 13501-1
  • Plastic glazing (polycarbonate / polycarbonate)
  • Industrial buildings
  • Commercial buildings
  • Office buildings
  • Administration buildings

Accessories for HAILSTOP ROUND dome rooflight triple-skinned


Fall-Through Protection Systems

SHEV and Ventilation