- Project plans
- Project activities
- Legislation and standards
- Industry context
Last edited 05 Sep 2017
Automatic release mechanism
To help develop this article, click ‘Edit this article’ above.
A device which will allow a door held open by it to close automatically in the event of each or any one of the following:
- detection of smoke by automatic apparatus suitable in nature, quality and location;
- operation of a hand-operated switch fitted in a suitable position;
- failure of electricity supply to the device, apparatus or switch;
- operation of the fire alarm system if any.
 Related articles on Designing Buildings Wiki
- Approved documents.
- Door closer.
- Door energy rating.
- Fire detection and alarm systems.
- Fire door.
- Fire Door Inspection Scheme.
- Fire Prevention on Construction Sites.
- Fire protection engineering.
- Hold-open device.
- Inner room.
- Joint fire code.
- Separating floor.
- The Regulatory Reform (Fire Safety) Order 2005.
- Visual alarm devices - their effectiveness in warning of fire.
Featured articles and news
The Isle of Man’s naturally-occurring materials and distinctive building techniques.
BRE partner with Global GreenTag to develop an Ethical Labour Sourcing Standard for Australia.
The Chartered Quality Institute explain the pathway to success for organisations implementing management systems.
An introductory article looking at where a duty of care can arise in the construction industry.
House of Lords committee encourages the use of off-site manufacturing in new report.
Computational fluid dynamics (CFD) can go some way to show the impact of new buildings on their surroundings.
The shortlist for the 2018 prize for the UK's best new building is revealed.
Amendment to Bill aims to provide councils with greater powers to increase tax premiums on empty homes.
As the latest summer blockbuster 'Skyscraper' is released, we look at some of the best uses of buildings in film.
Read our introductory article on how to layout a building.