Roofing
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Roofing PLASTIC WELDING Swiss made Flat- and Pitched Roofs Everything for welding on the roof

Dear Leister customers When working on the roof, you always need to be able to completely rely on your devices. This is our firm belief. And this is why you should quite rightly have high expectations of a Leister automatic roof welding machine: We guarantee to provide you with maximum device reliability and the best all-round service. Our welding devices are highly reliable even in difficult conditions with undervoltage. A high level of flexibility is also required when it comes to automatic welders. Our devices are used in numerous roof applications as well as in situations where space is...

For all roof applications Whether you're working in or on the parapet, under vaults, or on flat surfaces – you are guaranteed to find the automatic welders you need among our wide range of products. Here, you will gain an overview of various roof applications and find out which automatic welders are suitable for which applications. The UNIROOF AT/ST welds as close as 100 mm to the edge of the parapet or on the parapet without leaving a gap. Just one device for two applications. This flexibility enables a reliable jointing technique. Detail C enables anti-fall protection to be applied in a...

Arduous manual welding is a thing of the past. You can weld safely and ergonomically with the UNIROOF AT/ST 155.414 kit for plastic roof profiles. You can set the pressure rollers steplessly according to the width of the profile. At 2 m/min, you can carry out welding extremely efficiently. 20 UNIROOF AT/ST 155.414 kit Page: The popular, ergonomic VARIMAT V2 automatic roof welder welds all TPO and PVC sealing sheets with extra pressure thanks to its patented pressure roller and trailing roller. Its high blowing capacity guarantees high efficiency for all sealing sheets. This is also possible...

The benefits of Leister at a glance: Robust device components Low service costs with maintenance-free brushless drive and blower motors Durable heating elements Corrosion-resistant weights Performance High welding speeds and top performance Automatic welders with maximum flexibility cuts out steps in the process Low failure rates at the construction site (even with a generator) Service Support and device demonstration by our field service representatives Everything available from a single source thanks to a wide product range Tight distribution network with short delivery times Welding...

Roofing 8/9 Roofing welders and hot air Tools overview 10 – 14 Tips and Tricks 16 / 17 UNIDRIVE 500 18 – 20 UNIROOF AT / ST 22 / 23 VARIMAT V2 / VARIMAT S 24 BITUMAT B2 25 EXAMO USB / Testing instrument Aldi logistics center 50000m2 TPO Membrane, Switzerland Hot Air Tools for Roofing 26 – 28 TRIAC ST 27 / 28 TRIAC AT 30 / 31 ELECTRON ST 32 HOT JET S 33 General accessories Exploration Place First, Wichita, USA Schöni transport Centre, Switzerlan

Overview Roofing Welders Materials Type of welding machine VARIMATV2 Thermoplastic Single-Ply membranes UNIDRIVE 500 UNIROOF AT/ST VARIMAT V2 / VARIMAT S Main application Roof construction Flat roof Sloped roof Basic weld seams Detail work Thickness of sealing sheets Special features Parapet spacing in mm Generator operation Electronics Regulated for drive and heater (closed-loop system) Controlled for drive and heater (open loop) Speed m/min. Drive Welding speed (depending on material) Parapets, tight spaces, pitched roofs Parapets, edges Residential construction surfaces under 500 m2...

Manual welding with plastic sealing sheets. Overview Hot-air hand tools Typ Joining of thermoplastic sea- Joining of thermoplastic sealing sheets with high welding ling sheets with high welding Joining of modified bitumen power power Joining of thermoplastic sealing sheets in tight spaces. For detail work on roof gutters and parapets, for example Starting welding parameters manual weld PVC: From 360 C TPO: From 295 C with 20 mm nozzle Sealing sheets Suitable for PVC sealing Suitable for PVC/TPO sealing sheets with wide welding sheets with wide welding Modified bitumen window and TPO with...

Leister. We know how. - Tips and tricks Leister Technologies AG offers high-quality welding devices for demanding tasks – in any industry where plastic is processed. Here you can find a few tips and tricks that will help you ensure that your roof is leak-tight, whether the work involves bitumen or plastic. Welding Methods Hot air nozzle Pressure wheel Heating element Hot-air welding Hand tools, automatic welders, stationary welding machines Plastic membrane In hot gas welding, the thermal energy is controlled. Heated air is fed into the workpiece and the required amount of pressure is...

Air partitioning keeps the hot air in the weld seam to ensure reliable welding. Basic automatic welding machine equipment 132.429 Leister cutter Hooked blade for LEISTER-cutter (10 dispenser with 10 pcs) Straight-edge blade for LEISTERcutter (10 dispenser with 10 pcs) Leister foil scissors Brass brush UNIDRIVE 500 Brass brush UNIROOF AT/ST and VARIMAT V2 Welding plates for optimum welding start and end Seam probe tester for overlap seams Brass pressure roller with ball bearings Caution! Always carry out test welds before starting lap welds. In the morning and in the afternoon Basic hot-air...

Know-how Correct hot-air welding • Rule no. 1: weld like with like • In all welding processes, ensure the correct temperature/ pressure/speed settings are made so that seams can be created without problems. The joining surfaces must be dry and free from contamination. • Always check the hot-air welding device (for blocked nozzles, for defective heating elements, and in case the filter requires cleaning) • Carry out test welding and check seams for peeling • In the case of homogeneous sealing sheets, elastic bands may be used as welding aids. Avoiding air inclusions In the case of hard,...

Adjusting nozzles for UNIROOF AT/ST and VARIMAT V2/S • Distance between middle of spherical roller to tip of nozzle: 42 mm • Position standard nozzle at a slight angle; approx. 1 mm (sketch C) • Grip nozzle must lie flat Know-how What to note in the case of air inclusions. Rake nozzle kit to solve the problems caused by bubbles forming on hard surfaces. Growing heat insulation requirements have caused roof structures to undergo changes in recent years. Additionally, hard PI R/ PUR or thicker mineral wool insulating materials with a higher level of compressive strength are now installed on...