Intumescent strips swell when exposed to high temperatures to stop the spread of fire through gaps around fire doors. They are also available with an additional brush seal which stops the spread of cold smoke.
All our fire door seals are available for single and double fire doors, and resist fire for either 30 or 60 minutes (FD30 or FD60 fire doors). The seals can be fitted in either the frame or the door leaf.
Intumescent backing material for use when fitting fire rated hinges to your fire doors and frames, sealing any gaps to help prevent the spread of fire and smoke.
Dimensions (L x W x D): 100 x 30 x 0.8mm
Suitable for use on FD30 and FD60 fire doors
Supplied in packs of 6 (single door) or boxes of 300
Available with square or rounded corners to match most hinges
Fire doors stop the spread of fire, however, there are always gaps around fire doors and unless these gaps are filled, fire and smoke can spread through these gaps.
This is where fire door seals come in. These are fitted to the top and the sides of a fire door. When a fire breaks out the heat of the fire causes the intumescent in the fire door seal to swell, closing off the gaps around the door. This stops the fire lapping through the gaps and slows the spread of the fire.
Intumescent fire door seals with additional cold smoke seals are required for fire doors marked with an 's' by the specifier of the fire door, eg FD30S. However, there are applications where a brushed cold smoke seal would actually be unhelpful, for example if a small side room such as a broom cupboard without fire alarm leads to a corridor with fire alarm. In this case it is important that the door allows the leakage of cold smoke from a fire in the broom cupboard to set off the alarm in the corridor.
We offer a full range of rebated intumescent fire door seals as well as surface-mounted fire door seals for retro-fitting. Some of our seals include brushes to keep back cold smoke as well. All the seals are prepared in door kits whether for single or double doors and are available in different colours.
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