Learn more here about smoke shaft AOVs and the role they play in residential smoke ventilation.

A Standard Shaft (natural ventilation shaft) requires a 1.0m² OV (openable ventilator) at each lobby, which Colt can supply in the form of a Defender damper or Doorman actuated fire rated …

areas. Solutions to this include the installation of an automatic opening ventilator (AOV) or a natural/mechanical smoke shaft system. As smoke is extracted through such a system, the …

certified roof vents for shafts, end of corridors and stairwells. Order online with 24hr delivery options. has an extensive range of 24-hour despatch BS EN 12101-2 roof vents, louvres, …

An Automatic Opening Vent (AOV) Smoke Shaft System is an advanced safety solution designed to efficiently extract smoke from building stairwells and corridors in the event of a fire, …

Learn about Colt's AOV Smoke Control Systems, designed for efficient, reliable smoke ventilation and safety in commercial and industrial buildings.

AOV Direct's automated smoke shaft products and controls have been designed to disperse smoke and heat quickly from the building in the event of a fire. Available in standard sizes and …

Automatic Opening Vent (AOV) Rooflights are electrically operated natural smoke and heat exhaust ventilators (NSHEV) that allow natural light into a building. They can also be used for …

The Advantage is a 1 and 2 hour fire resistant AOV smoke control damper suitable for multi-compartment applications of smoke control such as lobby to smoke shaft ventilators. The …

2019年8月28日 · For natural shafts, the head of the shaft is terminated with an automatic opening ventilator (AOV). Mechanical shafts use extract fans, mounted on the roof and connected to …