Flat and Pitched Roofs


Various materials and systems are available for sealing flat or pitched roofs. The majority of the materials processed to this end around the world consist of thermoplastic membranes (PVC and TPO) or modified bitumen. The individual membranes are usually laid so that they overlap. Leister has the right tools for welding all these materials. Alongside welding automates, a variety of hand welding tools with matching nozzles and devices for testing the welding templates are available for details.

Leister offers economical and ergonomic hot air welders for lap welding of thermoplastic single ply membranes. The tried-and-tested VARIMAT V2 automatic welder delivers a safe and quick joint thanks to its patented spherical roller, nozzle with high preheating capability, and powerful hot air blower. Flat roofs are made leaktight quickly and safely thanks to welding parameters which can be monitored and modified – even in adverse weather conditions. The easy-to-handle UNIROOF AT/ST really proves its worth in locations which are difficult to access, in the immediate vicinity of walls, for smaller roofs, and for narrow radii. The small, semi-automatic TRIAC DRIVE AT welding machine is suitable for boarding and channels. Before the base seam is actually welded, the connection quality can be checked using the EXAMO tensiometer and accessories. Leister offers tried-and-tested hand welding tools for all precision work, above all the TRIAC ST/AT, which impresses users with its robustness and reliability.

Roofers dream of a welding machine for which failures on the construction site are kept as low as possible. There is nothing more frustrating than a machine which fails during welding. Failures mean a lot of work and additional costs for roofers. They need to be able to rely on their welding equipment. Even with a generator, the welding machines must function reliably.

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