Fire Doors - FAQs
Our helpline gets many calls relating to fire doors. Here are some typical questions we are often asked. If you need more help or advice contact us.
How do I obtain a manufacturer's test certificate for the door?
Obtaining a certificate for a fire door isn't always necessary. The label on the door provides information such as the Certifire Certification Test Number, the manufacturer's name and unique door number. If a certificate is required, it can be supplied by the door manufacturer, licensed converter, or from the Certifire Website.
How much can I trim off a fire door to make it fit into the frame?
The amount which can be trimmed off a fire door depends on how the door is constructed and is defined by each door manufacturer. The information is shown in the fitting instructions which accompany each door.
Can I use MDF linings and casements for my fire doors?
There is an increasing use of fire rated MDF linings and casings in construction. You must, however, refer to each door manufacturer's test evidence before use any non-standard framing material.
NOTE : Not all fire door manufacturers have test evidence to support the use of MDF products across the whole of their range. Evidence may be restricted to one type of door only.
Do I need to fit door closers on the fire doors in my home?
The Building Regulations removed the need to have controlled closers on fire doors in dwellings, with the exception of a door between a dwelling and integral garage.
NOTE: This requirement does not apply to flats and apartments. Requirements for these applications are to be found in the 'non-dwellings' section of Approved Document B.
Can I upgrade my existing doors to be fire resistant doors?
The simple answer is no.
Although solid wood doors do have some resistance to fire, you cannot be certain how the old doors are constructed, the density of the timber and how other components such as closers etc. interact with the overall installation. To be perfectly safe, you should replace the door and frame.
The use of retardant or fire resistant paints is not recommended.
What gap should be at the bottom of a fire door?
Although gaps at the bottom of the door are allowable to provide clearance for floor coverings, there is a limit as to how large the gap should be. This is defined by the manufacturer's test evidence and is shown in the fitting instructions which accompany the door.
Why can't I cut apertures or vision panels on site?
Removing any material from a fire door will affect its fire performance. Replacing the material with a glazed or non-glazed aperture requires an engineered solution to ensure the door's performance in a fire is not compromised. This work can only be carried out to strict procedures and under controlled conditions which cannot be undertaken on site.
Can I reglaze a fire door on site if the glass is broken?
Glass can be replaced where necessary. However, the glass must be fire rated to suit the door and must be fitted using the same components as the original installed door. If you have any doubt about these components or procedures, contact a BWF-Certifire Approved Licensed Converter who will be able to assist.
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