A hassle-free installation starts with the sub-construction.
The sub-construction raises the modules above the roof surface, protecting the structure against water and drifting snow. The sub-construction provides the supporting base for the modular skylights.
The skylight modules require an accurately dimensioned sub-construction, which can carry the module installation system.
The load-bearing capacity of the sub-construction needs to be calculated for each individual project based on the building design and application.
The sub-construction is not part of the prefabricated modular system, and the VELUX Group does not take responsibility for the sub-construction.