Hi ..are fire doors with concealed intumescent strip ( fitted under hardwood lipping ) still available/used and or compliant?

Contact ASDMA to find a supplier or manufacturer  https://asdma.com/knowledge-centre/

Hi.and thanks for that info Neil. While looking at this issue, the customer has raised another question relating to existing f.doors . Do all locks,latches,handle sets have to be fire rated? Or just on certain rated doors? 

Thanks again..T

The door hardware needs to be compatible with the fire door leaf but not always necessarilly fire rated. Check the available evidence of fire performance for the door leaf for the hardware specification.