Double Leaf FD30 SC door missing smoke/intumescent seals on meeting edge

[Guest Laura]

Good Afternoon

We have identified that there are no intumescent or cold smoke seals on the meeting edge of the doors (I can only assume that perhaps one of the door leafs has been replaced at some point by the previous occupiers),

We have been advised that the whole door needs to be replaced, is this correct, or can smoke/intumescent smoke seals be added to the existing doors?

 

Thanks

[Neil Ashdown MAFDI]

Its OK to install intumescent and smoke seals to an existing timber-based fire door leaf. But first its important to ensure that concealed intumescents have not been fitted and if they have not then make sure the intumescent seals you fit are the same type as those already fitted at the other edges or in the door frame. 

For double leaf fire doors, both leaves should be of the same type and evidence of fire performance should be checked where possible.