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Neil ashdown

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  5. Repairing holes in fire doors

    in Fire Doors and Accessories

    Posted

    There is no straight answer!  As far as I know fire doors with plugged holes have not been subject to a fire resistance test but there are some issues to consider:

    1) If you plug a hole in a certificated fire door the certification for the door will be void because such work is outside the scope of the certification.

    2) If you plug a hole in a fire door you should do so in the knowledge that the work you do must not adversely affect the fire performance of the door.

    3) Some fire doors are made from timber so if one has a hole in it and you need to plug it, timber is a good material to use.

  13. Do I need to change fire door frame

    in Fire Doors and Accessories

    Posted

    If the work is done to joinery workshop standards then the repair could be suitable.

    Suitable timber would need to be used for the jambs, with seamless edges and faces, with no gaps or voids and fixed with suitable steel fixings to the supporting wall through the joint, at approx 100mm from the top/bottom and max 600mm centres with minimum 50mm penetration into the wall substrate.  Only undertake this type of repair where you have specialist knowledge and experience including about intumescent sealing, smoke sealing and door frame to wall sealing requirements. 

  18. Fire doors for basement flat

    in Fire Doors and Accessories

    Posted

    Below is an excerpt from 'Fire Safety in Purpose Built Blocks of Flats'   https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/1020410/Fire_Safety_in_Purpose_Built_Blocks_of_Flats_Guide.pdfimage.png.6f3f39db807060e7f481c125d98ea1aa.png

    A flat entrance door that opens directly to an outside area would also serve as a final exit. Therefore, as Tom says 'a fire door is not required........' unless the door is required to protect other persons or properties.

  19. Good security locks for fire doors

    in Fire Doors and Accessories

    Posted

    Many fire doors have limitations about what products may be fitted in terms of security locks.  Often the lock is allowed only to be installed at a position between 800mm & 1200mm from the bottom edge of the door and there will be a limit to the lock-set dimensions.

    For this reason many of the fire doors seen with a cylinder night latch rim lock are non-compliant to the door manufacturers' evidence of fire resistance performance.

    So in terms of the door you have had installed and improving security, it will be necessary to check with the door manufacturer about what type of locks may be fitted and at what positions. Some door leaves do have evidence of fire resistance performance with additional mortice dead locks fitted, but many do not.

    However, the fire door industry have been aware of this issue for some time therefore dual certification PAS 24 Secure By Design fire doors are available. So when specifying new fire rated flat entrance door-sets, one should add this where it is a requirement.

  20. Fire doors in a domestic 3 storey house

    in Fire Doors and Accessories

    Posted

    In a three storey house, in scope of building regulations, doors opening onto the staircase, landings and hallway should be fire doors. This is so that the doors, when closed, would protect the entire escape route from top floor to the entrance door from fire spread. 

    So if the kitchen opens onto that route, then it should have a fire door.

    Also, any door inside the house to an integral garage should be a thirty minute fire door with self-closer and smoke seals.

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