Smoke Vent Installation
Smoke control is an important life safety feature of any building. Equipment and systems relating to smoke control and ventilation must be designed and installed correctly for the building to ensure safety of occupants and where appropriate, fire fighters.
Mechanical smoke shaft systems are commonly installed as part of a fire engineered approach to safety in buildings and the presentation by contractors and acceptance of these by Building Control Officers is a key event in the handover process of construction projects. These are routinely conducted in an ad hoc manner with little structure, evidence of commissioning, or record of performance data. It is common for demonstrations to be repeated several times for to a variety of reasons including system non performance, absence of key personnel and incomplete interfaces with other systems.
A stairwell smoke ventilator is an automatic opening ventilator (AOV) which provides at least 1.0m2 of free area when open. It usually serves one of two purposes;
- To evacuate any smoke that gets in the stairwell of small buildings
- Or more commonly it provides replacement air for a lobby smoke extract system in large buildings
There are two main types of smoke ventilators, used at the head of a stairwell – they are louvred vents and hatch vents. Both types of vents are able to perform the expectations of an AOV, however each have individual benefits which will influence the selection process.