The practice-oriented training is aimed at roofers, waterproofers, site managers, manufacturers of plastic roof membranes and interested architects and planners. When waterproofing flat roofs, waterproofing membranes made of thermoplastics such as PVC, TPO and bitumen are laid. Leister has various automatic welding machines for different requirements in its range for overlap welding the roof membranes. With the digital Leister Quality System, LQS for short, the important welding parameters of temperature, air volume and speed are not only under control, but the welding quality is also precisely documented. Participants learn how to use the full potential of the devices, machines and accessories safely and successfully.