The Leister TRIAC AT Hot Air Welding Kit contains everything you need for professional hot-air welding of single-ply roofing membranes.
Built around the powerful and reliable Leister TRIAC AT digital hot air tool, the kit includes a selection of essential welding accessories for completing detail work, seams and membrane installations efficiently and to a professional standard.
Supplied in a genuine Leister tool case, it's an ideal complete kit for professional roofing contractors working with compatible thermoplastic single-ply roofing membranes.
What's Included?
- Leister TRIAC AT Hot Air Tool
- 20mm Wide Slot Nozzle
- 40mm Wide Slot Nozzle
- 40mm Silicone Pressure Roller
- Brass Pressure Roller
- Brass Brush
- Seam Inspection Tool
- 10" Roofing Scissors
- Leister Tool Case
Please note: Accessories supplied within the kit are sourced from various manufacturers.
Leister TRIAC AT
The Leister TRIAC AT is a professional digital hot air tool designed for demanding roofing applications.
Its digitally controlled temperature and clear display give the installer precise control during membrane welding, while the lightweight and well-balanced design makes it comfortable to use for extended periods.
At approximately 1 kg, the TRIAC AT combines a robust site-ready construction with excellent handling and performance.
Key Features
- Designed for professional roofing and site use
- Ideal for hot-air welding of compatible single-ply roof membranes
- Digitally controlled temperature
- Clear digital temperature display
- Lightweight – approximately 1 kg
- Two-component handle for a comfortable, secure grip
- Optimised centre of gravity for improved handling
- Quick-clean air filters
- Automatic carbon stop
- Heating element protection
- Accepts push-fit welding nozzles
- Complete kit supplied in a Leister tool case
A Complete Kit for the Professional Roofer
Rather than purchasing the hot air tool and essential accessories separately, this kit provides the equipment needed for many everyday single-ply membrane welding and detailing tasks in one convenient package.
From membrane cutting and preparation through to hot-air welding, pressure rolling, seam checking and cleaning, the kit is designed to give the professional installer a practical set of tools that can be taken straight to site.



