Automatic release mechanism
Approved document B, Fire Safety, Volume 2, Buildings other than dwellinghouses (2019 edition), defines an automatic release mechanism as:
|
A device that normally holds a door open, but closes it automatically if any one of the following occurs.
|
NB Approved document B previously defined an automatic release mechanism as:
|
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: |
[edit] Related articles on Designing Buildings Wiki
- Approved documents.
- Door closer.
- Door energy rating.
- Doors.
- 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 Edwardians and their houses.
Cut off from civilian life for over 900 years.
Can net zero and levelling-up align?
Gaining green support from the carbon giants.
Medieval passageways with spiritual, transport and economic purposes.
CIOB applauded for people management leadership
Organisation receives accreditation from Investors in People.
Receive the Designing Buildings newsletter
Click the button to subscribe.
The importance of successful crisis messaging
Communicating the right information at the right time.
Angular selective shading systems
Materials can take on different properties to control heat and glare.
Challenges in the construction sector and beyond.
Exploring brick and timber construction techniques.
On wheels or on platforms, micro dwellings are popping up everywhere.
Electrical safety in the private rented sector
Landlords must now comply with new repair regulations.
Check out our A-Z of equality, diversity and inclusion.
We now have more than 12,000 articles
You can add articles and help improve knowledge in the construction industry.
Ayo Sokale explains the struggles of being neurodiverse.