FDT Drainage Systems For Flat Roofs
Direct and efficient precipitation water discharge is vital for the service life of any waterproofing as well as for the building below; preferably without ponding.
During the design phase, architects will already take a fundamental decision: If the roof is sufficiently sloped, prerequisites are given for natural water discharge. Standard external drainage to bracket-mounted gutters will normally be enough. Buildings with circumferential parapets, on the other hand, are significantly more challenging. They will require internal drainage as specified in DIN EN 12056-3. The FDT VarioGully modular system comprises everything that is required for a high-quality drainage and emergency drainage system. The FDT VarioGully is now available as an upgraded second product generation rainwater outlet. The innovations include the new material of polypropylene providing outstanding impact resistance to both the flat roof rainwater outlet and the accessories. Furthermore, compared to the predecessor model the drainage rate has been increased by up to 25 per cent.
Prefabricated flashing collars are complementing the system, as do FDT emergency overflow sockets and FDT fire protection collars. Alongside the hardware, we also provide software: FDT supports its clients by offering a design service for a properly dimensioned drainage.