- Project plans
- Project activities
- Legislation and standards
- Industry context
Last edited 06 Feb 2018
Types of alarm in buildings
- Accessible toilet alarm: Allows occupants to call for assistance.
- Carbon monoxide detector: Electrochemical sensing technology sounds an alarm if carbon monoxide is detected. Many carbon monoxide alarms are combined with smoke alarms in one device.
- Deterrence alarm: A high-pitched sound that is particularly audible to younger people, can be used as a form of hostile architecture.
- Fire alarm: Gives early warning of developing fires to enable evacuation.
- Flood alarm: Senses the presence of water and can provide early warning of leaks, i.e. in pipework or boilers.
- Intruder alarm: Detects attempted intrusion or unauthorised entry into a building, room, site or secure installation and triggers a response. Some burglar alarms are simple auditory warnings, while others are linked to surveillance cameras, light systems, and remote monitoring by security companies.
- Heat alarm: Have fixed-temperature elements and respond to the temperature of the fire gases in the immediate vicinity of the heat alarm.
- Lift emergency alarm: Sounds an alarm in the event of a passenger lift breakdown to alert personnel.
- Multi-sensor alarm: Detect more than one fire phenomena, for example optical and heat detection.
- Smoke alarm: Can be optical (detect the scattering or absorption of light within the detector chamber) or ionisation (more sensitive to smoke containing small particles such as rapidly burning flaming fires but are less sensitive to steam).
 Related articles on Designing Buildings Wiki
Featured articles and news
Consistently one of our most popular articles - so just how much do you know about BoQ's?
Significant updates encourage whole building life cycle assessment and recognise products with Environmental Product Declarations.
Gustavo Giovannoni’s role in integrating modern planning requirements into historic town centres.
Desipite Hackitt's recommendations, the government are to consult on combustible cladding.
People or density - can we create urban liveability at ever-increasing densities?
3D printing is the computer-controlled sequential layering of materials to create 3D shapes.
Hackitt review calls for a radical rethink of the whole system and how it works.
Life cycle assessment is used to total up the environmental impact of a product’s supply chain. But why building LCA?
The government warns building owners of a performance issue with Grenfell fire doors.