Fire ventilation

The smoke control system can be designed for various purposes such as rescue teams by creating a smoke free zone or controlling secondary fire sources and restoration of the building for use.

In Poland in accordance with the Ordinance of the Minister of Infrastructure dated 12 April 2002 on the technical conditions to be met by buildings and their location (Journal of Laws No. 75, item 690 of 15 June 2002), item 1 prg. 270 ventilation installation should ensure smoke removal from the intensity and at least 10 exchanges per hour, unless another computational number of anti-smoke exchanges of protected spaces and evacuation routes is calculated”.

Smoke systems for garages and other objects can be divided into two types:

duct smoke

consisting in creating a smoke-free zone. Separation of air layers horizontally. The system consists of fans usually smoky roofs, ducts of adequate durability fire extinguishers, exhaust grilles, regulating elements that do not contain fire extinguishers and smoke and fire dampers. The task of a  wired smoke system is to keep the smoke at a height that is above the smoke-free zone. The air flow is done behind through the wall-mounted air intake, air suction under pressure when the smoke system starts.

smoke control system

is the direction of the smoke in the direction of smoke outlet on outside. Separation of air layers vertically. The system consists of typically circular fans equipped with suction and discharge silencers. The fans direct the smoke to the exhaust shaft. Shingles for smoke removal are equipped with the most common roof fan. The fresh air intake is vacuumed through the designed intake or shutters opened from the fire alarm system. This creates a controlled flow of smoke throughout the garage area. If it is not possible to design an exhaust system for an exhaust system, the ventilation system may be an alternative.