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Welding of plastic geomembranes on flat roofs
Economical and safe

VARIMAT V2
Leister offers economical and ergonomic hot-air welding machines for lap welding PVC and TPO plastic geomembranes on flat roofs. The VARIMAT V2 achieves a unique speed of up to 12 m/min. 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 and UNIROOF ST really prove their 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. 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.
  • Welding of lap seams on flat roofs of various sizes consisting of PVC and TPO plastic geomembranes
  • Processing of connections and details
Leister has the solution
Ergonomic and economical welding of plastic geomembranes with Leister's reliable hot-air welding machines. A wide range of hand welding tools and matching accessories are available for working on small roofs, on details and in inaccessible locations.
  • Hot-air welding machines with controlled technology for reliable welds
  • Complete tool range for all applications
  • Maximum welding speed
  • Long service life with low maintenance requirements.
Overlap welding of modified bitumen
Flameless and economical

BITUMAT B2
When it comes to welding bitumen roofs, Leister proves that economy and safety do not have to be mutually exclusive: Unlike when welding with an open flame, Leister's BITUMAT B2 can be used to lay modified bitumen completely safely and cleanly. With a top speed of up to 12 m/min it is incredibly economical to run, particularly as only one user is needed for this process when working with an open flame, two are required. The ergonomic posture adopted during welding is also well-received by the user. Leister's hand welding tools, such as the powerful ELECTRON ST, which provides up to 3400 W, are also suitable for carrying out precision work on bitumen roofs too.
  • Welding of bitumen sheets laid in an overlapping arrangement
  • Processing of connections and details
Leister has the solution
Leister enables modified bitumen to be welded easily and safely, with hot air being used instead of an open flame.
  • Safe, flameless welding of modified bitumen using the BITUMAT B2
  • Powerful hand welding tool for details
  • Matching accessories

Hot-air hand tools
ELECTRON ST
Leister's most powerful hand tool ELECTRON ST. Suitable for construction sites.
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TRIAC AT
The TRIAC AT is an intelligent hot-air hand tool for welding and shrinking plastics that is suitable for on-site use.
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TRIAC S
The competitive hand tool. Deployed worldwide and very reliable, compact and robust.
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TRIAC ST
Handiness, reliability and versatility are the key arguments in favor of the TRIAC ST. Its two-component handle gives users a perfect grip, while the low weight of less than 1 kg ensures an optimum weight balance. The innovative motor and turbine design, combined with the heating element familiar from the TRIAC AT, enhance the value even more. More than 80 nozzles fit onto the TRIAC ST; these are also compatible with the TRIAC AT and TRIAC S.
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Hot-air Welder
BITUMAT B2
Safe flameless welding of modified bitumen (SBS, APP) with the BITUMAT B2.
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UNIROOF AT
The new UNIROOF AT automatic roof welder solves every problem. Close to the edge and service-friendly. Reliable and no modifications nece...
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UNIROOF ST
The new UNIROOF ST roof welder combines closed-loop and open-loop and solves every problem close to the edge in a service-friendly way.
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VARIMAT V2
With up to 12 m/min welding speed polymer roofing membranes can be welded more rapidly.
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Semiautomatic hot-air tools
TRIAC DRIVE AT
The TRIAC DRIVE AT are up to three times faster than manual welding. The unique, semiautomatic welding tool.
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TRIAC DRIVE AT with guiding help
The TRIAC DRIVE AT with welding guide, inside nozzle or outside nozzle, the unit is suitable for all roofing and tunneling applications ...
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Testing instruments
COUPON CUTTER
Robust weld test cutter for use in civil engineering.
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EXAMO USB
EXAMO USB performs tests at the construction site quick, reliable and uncomplicated.
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