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.
Identifying fire doors certified fire doors.
Fire doors and doorsets are rated in minutes and prefixed by the letters fd.
Fd30 doors and fd60 doors.
Fire doors break down into two main categories.
Sometimes higher fire ratings are necessary to help protect property or assets as well as to protect people.
Timber internal flush doors fspec03 specification forza first fd90 s timber internal flush door.
The most common specification for fire doors leading to escape routes are fire doors resisting fire for 30 minutes called fd30 fire doors.
The difference between the two is that fd30 doors essentially means 30 minute fire doors and fd60 doors.
This makes intumescent seals crucial to the functionality of a fire door.
The weakest point of a fire door is the gap between the door and the frame.
The benchmark fire door range which we at drs supply includes six fd30s 44mm grp fire doors available in five colours and one of the only fd60s grp doors available on the market.
The building regulation relates to the entire door installation and not just the door alone.
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.
Manufacturers can certify fire door sets both for identification purposes and to guarantee their performance in a fire situation.
The first step for the manufacturer is to construct a fire door set designed to a specification that in their opinion will resist a fire for a specified length of time.
These seals can prevent the spread of fire and smoke for up to 60 minutes depending on the fire door specification.
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.
An example are fd60 fire doors which resist fire for 60 minutes.