England · West Midlands · fire protection
Catshill stair and corridor smoke control
10,741 people were the published usual residents of Catshill in 2019. The place sits in West Midlands, England. The source line is ONS towns 2019. Classification on that source: Small. Workplace profile in the ONS towns file: Residential. Deprivation band on the same file: Low Deprivation. Coastal classification: Smaller non-coastal towns. ONS records population change of 2% between 2001 and 2019 for this built-up area.
Manual control at the landing
Residents and the fire service use the manual point, often at stair level, not the panel in a locked riser. We operate that switch as well as the panel output. A vent that only moves from the engineer’s laptop is not commissioned.
Rain sensors lose to a fire input
Comfort mode may shut a vent when it rains. Smoke mode has to win. On a visit we simulate the fire-alarm contact and watch whether a wet sensor still holds the stair vent closed. If it does, the panel logic or the sensor wiring is wrong, and the roof hatch is not a smoke vent until that is fixed.
Automatic opening vents are life-safety smoke control, so this sits with fire protection and is quoted across the UK. Population figures are the published resident counts named above. They are not a survey of vents in Catshill.
