Sam Jackson

Hi, I have read through the approved Fire Safety guideline documents, but had some further questions. I want to acquire a fire door (FD30) to meet the 30 minutes fire resistance based on the existing guidelines, but I would like to ensure that I have understood the guidelines properly. The guidelines appear to suggest that: - Flats on the ground floor do not require fire doors. Flats that are on an upper floor that is below 4.5 m do not need fire doors, if the habitable rooms have a means of escape through an external door or escape window. Flats located on an upper floor above 4.5 m will need fire doors between the habitable rooms and the hall leading to the entrance. Happy to be corrected if the summaries above do not reflect the guidelines. Can someone please help with the questions below? What is the correct way to measure 4.5 m above the ground level? a.Is that from the bottom of the ground floor to the top of the first floor? b.Is that taken from the top of the ground floor to the top of the first floor? c.Is there another way the measures can be taken? If so, what would that be? Looking at the guidelines above, can it be taken to mean that flats on the first floor do not need fire doors?