Automatic (drop door bottom) seal
The Guild of Architectural Ironmongers publication 'Glossary of architectural hardware terms' defines an automatic drop (door bottom) seal as 'a seal fixed at the bottom (threshold) of the door leaf which automatically retracts from the floor as soon as the door leaf is opened by a few millimetres, and generally requires no electrical connections. These can be fully rebated, semi rebated or face fixed.'
[edit] Related articles on Designing Buildings
- Access control.
- Digital door lock market.
- Doors.
- Emergency Exit Device.
- Entry control.
- External doors..
- Fire Door Inspection Scheme.
- Fire door.
- Fire Doors (DG 524).
- Fire.
- Grenfell tower.
- Hinge.
- Home security solutions market.
- How door locks work.
- Installing fire doors and doorsets (GG 86).
- Intumescent strip.
- Mortice lock.
- Mortise vs mortice.
- Noise - doors and windows.
- Outbuildings security.
- Perimeter security.
- Protected door.
- Self-closing device.
- Security and the built environment.
- Security glazing.
- Smoke control door.
- Sneck.
- Types of alarm.
- Types of door
- Types of lock.
- Width of doors stairs and escape routes.
Featured articles
Check out some of the best features and news from Designing Buildings as well as key stories from around the web.
Channel 4 broadcaster to host 125th anniversary ceremony.
Listed structures on the rail network
Heritage interests and operational requirements must be balanced.
Historic England publishes research into embodied carbon when retrofitting traditional buildings.
New Prime Minister delivers on ECA call for cut in electricity costs.
CIOB reacts to the announcement of Andy Burnham as Prime Minister.
Heritage and conservation science workforce survey - Have your say.
England's Suburbs 1820-2020. Book review.
New, more proportionate and targeted approach for higher-risk building assessments.
Government brings British Steel into public ownership.
UKCW Birmingham returns with bold new theme and focus.
New guidance published on competence requirements for self-certification schemes.
Construction Management, 8 July
NEETs crisis drives interest in trades, but apprenticeships barriers remain.