Natural Smoke and Heat Exhaust Ventilation Systems (NSHEVS) play a critical role in fire safety. By using natural buoyancy to extract smoke and hot gases, they maintain a breathable air layer that significantly reduces risks for occupants.

The LIOBAL 500 is a complete cable-operated top-hung window opener with a sliding handle, designed to safely and smoothly operate interior bottom-hung windows up to 25 kg.
Its robust mechanism — including an aluminum handle with stop, a 600 mm zinc-plated steel slide rail, and bendable steel tubes — ensures controlled opening up to 500 mm, with an adjustable stroke according to the installation needs.

The LIOBAL 4000 – Exterior bottom-hung system allows manual or motorized operation of exterior bottom-hung windows, including multi-window configurations.
With its ultra-slim 20.5 mm profile, it easily fits aluminium, wood, and steel frames.

The LIOBAL 4000 – Interior bottom-hung system is a high-performance rigid-rod opener designed to operate interior window sashes up to 80 kg.

The LIOBAL RADIO is a wireless motorization system designed to automate all types of façade and roof windows: interior bottom-hung, exterior bottom-hung, skylights, and top-hinged openings.
With its integrated radio receiver, it requires no wired control line, making installation simple, fast, and highly flexible