Electrically operated windows used as NSHE (EN 12101-2)

Smoke and heat-exhaust equipment serve to ensure that in the event of a fire, there is a smoke-free layer at ground level by extracting sufficient smoke from the smoke zone. They also serve to extract the hot fumes which are released by a fire as it develops.

Smoke and heat-exhaust equipment is commonly used to create smoke-free areas below a stable layer. It helps to keep escape routes free of smoke, thereby assisting in the evacuation of people from a building which is on fire and preventing the fire-related damage and financial losses brought about by smoke damage. It also aids the fire-fighting effort by improving visibility, lowers temperatures in the areas under the roof and slows down the horizontal spread of the fire.

In order to achieve these goals, it is imperative to ensure that the natural smoke and heat-exhaust equipment is kept in full and reliable working order throughout its service life.