How to ensure CERTIFIRE certification is maintained.

It is not a mandatory requirement to be certificated if making certain changes to fire doors manufactured under the BWF-Certifire Fire Door Scheme.
Some changes are allowed within the certification scope of the fire door leaf.
This guide explains how to ensure ‘Certifire’ Fire Door Certification is retained when hanging a Certifire-Approved door leaf or making a doorset from a Certifire-Approved door leaf.