Hardwood lipping

[Guest Steve]

Hi all

I have just been asked by a surveyor to take off additional hardwood lipping from a fire door and close the gap by adding softwood lining to the door frame as it looks more aesthetically pleasing. Logically I assume it would be better to have a firecheck hard wood lipping on the door rather than building out the doorframe with more softwood? 

 

 

[Tom Sutton]

What do you man additional hardwood lippings?

[Neil Ashdown MAFDI]

Using thin pieces of timber to add thickness to the inside face of a door frame or to the edge of the door leaf is not a suitable repair (to a fire door) when trying to reduce the gap between the door leaf and frame.

Where the gap is so large that it cannot be reduced by adjustment, either:

1) Loosen the door frame jamb, pack behind and fire-stop between frame and wall accordingly. So as to reduce the overall width to suit the door leaf.

2) Remove the existing hardwood lipping form the door leaf and fit a replacement hardwood lipping thick enough to reduce the gap. Lippings should be generally min 6mm thick to a max of 18mm

I assume suitable intumescent seals are fitted?