What standards apply to stairwell AOVs?
Edited
The main standard applying to AOVs in general and stairwell ventilators is BS EN 12101-2:2003 Smoke and heat control systems – Natural smoke and heat exhaust ventilators.
The main standard applying to AOVs in general and stairwell ventilators is BS EN 12101-2:2003 Smoke and heat control systems – Natural smoke and heat exhaust ventilators.