VELUX Glazing Panels require an accurate, fixed and dimensioned sub-construction. For each project, a specific sub-construction drawing will be prepared with measurements for the outer geometry of the sub-construction. The strength of the sub-construction must be calculated for the individual project, based on the building design and application size.
To be able to correctly install VELUX Glazing Panels, the sub-construction must be parallel to the panel itself.
The sub-construction is not part of the bespoke glazing system, and the VELUX Group does not take responsibility for the sub-construction.