There are two different types of intumescent seals.
Fd60s fire door specification.
The craftsman range includes many of masterdor s most popular traditional and contemporary engineered timber styles available in 44mm thickness for a fd30 fd30s.
Manufacturers can certify fire door sets both for identification purposes and to guarantee their performance in a fire situation.
Because of this fire doors are not tested as individual leaves but as a complete installation along with frame locks latches and other essential ironmongery.
Fire doors break down into two main categories.
The most common specification for fire doors leading to escape routes are fire doors resisting fire for 30 minutes called fd30 fire doors.
2008 code of practice for fire door assemblies forza first specification documents fspec01 specification forza first fd30 s timber internal flush doors.
The difference between the two is that fd30 doors essentially means 30 minute fire doors and fd60 doors.
Fire doors and doorsets are rated in minutes and prefixed by the letters fd.
These seals can prevent the spread of fire and smoke for up to 60 minutes depending on the fire door specification.
Fd30 doors and fd60 doors.
The building regulation relates to the entire door installation and not just the door alone.
Sometimes higher fire ratings are necessary to help protect property or assets as well as to protect people.
An example are fd60 fire doors which resist fire for 60 minutes.
Identifying fire doors certified fire doors.
Not all fire doors are the same however and different requirements will be in place depending on the location of the door and the fire hazards within the building.
The weakest point of a fire door is the gap between the door and the frame.
60 minutes to bs 476 part 22.
1987 cold smoke control to bs 476 part 31 1.
Timber internal flush doors fspec03 specification forza first fd90 s timber internal flush door.