Because of the weight of a fire door and to prevent it warping fire doors are usually fitted with three fire door hinges.
Fire door hinges regulations.
This means that in the event of a fire all of these doors will close and latch without a person s help.
All fire doors have an additional safety feature they must be self closing and self latching.
Again this may vary from manufacturer to manufacturer.
For the latter it may be necessary to use hinges with extended flaps broad butts so that fixing is maintained even when severe charring has taken place.
Any fire door will have a minimum of three hinges.
Intumescent may be required so it is important to check certification.
When the regulations talk about fire doors they are really talking about fire sets.
This is accomplished through the use of a closer or spring hinge and a fire rated lockset or exit device.
Fire doors will have automatic closing devices fire door closers fitted.
Spring loaded self closing hinges and concealed perko door closers with chains might also be in evidence.
Internal fire doors will in lots of instances have at least 3 sizes but in most styles we are able to offer a choice of several sizes and two thicknesses including the 30 minute fire doors or the 60 minute fire doors the latter is only available in a handful of options fire door regulations are stringent make sure you choose.
A hinge tested for use solely on escape doors can be ce marked but will not be suitable for fire doors.
Steel and brass hinges are effective for a half hour door but only steel hinges will be satisfactory for a 60 minute fire door fd60.