Dome rooflight safety concept

Within the Framework of retrofitting the LK-DDN and LK-DDS fall-through protection systems, VELUX Commercial can provide a standardised 5-step systém proces with which the safety on your flat roof is tested by VELUX Commercial certified experts. Commencing with a hazard assessment including advice regarding defecets, through to the load-bearing capacity test of the upstands up to, and including, retrofitting, acceptance approval and final documentation. Manufacturer independent and objective.

If, during the course of the hazard assessment, it becomes apparent that the dome rooflights on your roof are not, or only insfufficient, secured against falling through, then it can be directly inspected wheter your upstands are suitable for retrofitting. Our special torque wrench enables determination for the load-bearing capacity for retrofitting the LK-DDN and  LK-DDS with just one click. The proces is BG (German Employer’s Liability Insurance Association) tested and certified. Our safety systems can only be utilised without hesitation when this test is positive.

The subsequent installation of the nets is executed quickly and safety – due to the detailed assembly instructions and the self-locking fastening systém. The final steps comprise technical approval acceptance and final documentaion.

You can achieve maximum safety on your flat roof in just 5 steps with us.

Stability testing


Technical approval inspection


Downloads for the dome rooflight safety concept