Browse our trade standard intumescent seals.
Intumescent strip fire door.
An intumescent strip is a chemically designed product that helps to prevent the spread of fire and limit any smoke that travels from one area to another.
The weak point of a fire door is the gap between the door and the frame and this is where the presence of an intumescent strip is.
Once a fire breaks out in a room the heat causes the strip to expand and seal the gap around the frame in order to contain the fire giving you enough time to escape and call.
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The following is information on the type or size of intumescent fire door seal that should be used.
Fire door seals activate at temperatures that are above human survival levels.
The job of a fire door is to prevent the spread of fire from room to room and the length of time the door will contain the fire is given in the fire rating of the door.
Intumescent fire door seal white 15 x 4 x 1050mm 5 pack 74713 product rating 3 4 out of 5 stars compare.
A further type of intumescent material available in different grades acts in all directions and generates some pressure.
Pyroplex intumescent strip provides a basic intumescent seal for fire rated metal and timber door leaves and frames.
It is also ideal for general gap filling in buildings eg.
Suspended floors soffits and ducting.
Like most things a fire door is only as strong as its weakest links and without intumescent strips surrounding the outside of the door fire will be able to move from room to room much quicker and easier.
What is the intumescent strip.
The intumescent strip sometimes called a seal is just one of the key components in a fire door.
There are two types of intumescent strip fire only and fire smoke seals.
Intumescent strip door brown 10 x 4 x 1050mm 5 pack 12760 product rating 5 out of 5 stars compare.
Intumescent strips or fire door strips are fitted to the door and when exposed to extreme heat expand to close any edges or gaps that may leave the fire door vulnerable to fire and smoke spread intumescent door strips are usually designed to provide up to 30 or 60 minutes fire resistance and help to contain the fire in one area and prevent it spreading.
An intumescent strip is chemically designed to expand when exposed to extreme heat.
This strip is usually placed around door frames.
An fd30 door will resist fire for 30 minutes and an fd60 door will resist fire for 60 minutes.
Property owners and developers place the intumescent strip around the frame of doors in their building.
Running around the edge where the door meets the doorframe it helps to trap the smoke in the area preventing it from spreading as well as assisting in keeping flames from spreading beyond the door.
Find both fire and acoustic door seals.
