Hi

 

We are converting a 4 storey house (under 18m) to flats and don't want to remove any of the ornate plaster ceiling coving, ceiling roses and skirting.

We do need to lift the floorboards to provide better acoustic separation between the flats.

It's very likely we have to provide 60mins fire separation for walls and ceiling between flats and between the common stairway to the fire exits.

We may be getting an Approved Inspector and maybe a Fire Consultant to help with come up with some solutions....

However, we don't have anyone to advise yet, so was hoping for some initial guidance on what options we have, that are the least intrusive, but will do the job.

Thanks.

 

If you are lifting the floor boards then this may be suitable, applied correctly it gives over 100 minutes resistance. The same site has treatments for the beams and for walls and doors

https://envirograf.com/product/under-floor-fire-barrier-and-acoustic-barrier/