AnthonyB

Most people don't know about this and even less enforce it. Up and down the country mags are still being installed with no regard to EN 13637 Electronically Controlled Escape Systems (for use on escape routes). Unless official guidance is updated & new standards insisted on by AHJ's it will be a while before any noticeable change

Commercial tenant will be responsible for the FRA of that unit. Residential units are private dwellings so wouldn't need internal FRAs Building has 2 or more dwellings so would in theory need an FRA covering the external fabric of the building

If you are in England you can have what you want if it's your own private dwelling. If your budget stretches to it the optimum cover is LD1 which is virtually everywhere (as you have described). LD2 (hallways/landings, kitchen & principle habitable room) is a good in-between and is quite commonly installed in new builds even where not legally obligated to.

Are these flats or commercial? If this is an external stair the following usually applies: Where an external stairway is provided, any door or window (other than toilet windows) opening onto the stairway, or within 1.8 metres horizontally or 9 metres vertically of it, should be fire-resisting. Windows should be unopenable and doors should be self-closing. In exceptional circumstances, a small number of unprotected, openable windows may be allowed, provided that the rooms containing them are separated from the rest of the building by fire-resisting construction and the external stairway is not the only one from the upper storeys.

You'd find most guidance here https://www.gov.uk/government/publications/fire-safety-in-purpose-built-blocks-of-flats

If the original panel was asbestos this will have been the original fire rated enclosure - a 1960's block would indeed have compartmentation (see CP3 Chapter IV Part 1) and if this has been altered worse then original it needs remediation - however if it is now stopped at each floor you could potentially argue that this has been used as an alternative approach to remediation that provides the same level of protection. This should be determined as part of fire risk assessment, retrospective fire strategy and the safety case.

Fixed shut usually means incapable of opening. What reason was given for changing them - where are they?

The inspection you've copied does give repair options so as long as the FRA considers a repaired door acceptable for the risk you are fine - are these certified or notional doorsets? If certified then it may be necessary to contact the manufacturer to check that the repairs required can be completed without affecting certification as you shouldn't be making the situation worse/to a lower standard than the original installation.

Many in the fire sector have little faith in building control either! Anything other than major redevelopment rarely goes through Building Regs (even if it should) and fire strategies are still rare for pre-1991 projects (& missing in action over the years for many that don't). The Fire Safety Order and associated Secretary of State guidance make it clear that the assessment should determine if provisions are adequate and to remediate as appropriate - that there are too many risk assessors that don't actually risk assess or act holistically is another matter and I'd agree there is an issue there to address!

Possibly, but not necessarily - difficult to say without looking although if the bottom of the windows are at or above 1100mm height this usually precludes the requirement for fire rated windows on an open deck so there may be no requirement under current risk assessment guidance to make this change.

https://window.rehau.com/uk-en/pvcu-windows-doors-composite-curtain-walling/pvcu-rehau-windows/fire-rated-windows

One of the many defects that contributed to the multiple fatalities at the Rosepark Care Home fire was inadequate separation in the roof void. In a roof void cavity barrier's should be installed directly in line with any compartment walls below, but if the ceiling is fire rated the cavity barrier's are not required to be inline with the walls below and are used to reduce the roof space to maximum 20m in length - but they are still provided. The issue is that a fire rated ceiling is normally only tested from below for fire resistance and not from above, so a fire in a roof void could compromise the ceiling in less than the required time of fire resistance. Fires have also spread externally into roof voids via window & wall cavities and from windows by passing the suspended ceiling. A Building Control approval doesn't mean that much as there are so many buildings passed despite latent defects. Being 2016 it should be to current standards as they were in place back then as well. The risk assessors have failed to take into account that it's a Care Home - if it was an office or similar with simultaneous evacuation there may be a case for risk based evacuation based on AFD alone, but for a sleeping risk premises with vulnerable occupiers requiring assistance to evacuate and likely to be operating progressive horizontal evacuation it is critical that the highest level of compartmentation is maintained as it's not going to have a 3 minute evacuation time!

Plenty of legacy building predate fire strategies and engineers and it was the fire service originally and now the risk assessor which determine adequate precautions. Building Regulations are one thing, but once the building is occupied they take a back seat and the fire regulations are quite clear that for occupied buildings the FRA decides what's needed

Told by who? Investigation periods of up to 6 minutes are acceptable within BS5839-1 for the fire alarm system and with the category of fire alarm and amount of fire resisting construction is not unreasonable to accept in a fire risk assessment. Check the local brigades Automatic Fire Alarm policy - although sleeping risk at night should get an automatic response on call only they may require evidence of a fire other than the alarm activation first. Nothing so exact is 'law' as the legislation simply sets broad functional requirements, not prescriptive detail - the fire risk assessment is the main driver to determine necessary measures.

You've asked this in another post - remember if you are talking about an existing building ADB isn't relevant as that's for new building design and significant alterations - the Fire Safety in Purpose Built Flats guide is more suitable

What is in it? Electrical distribution cupboards, whilst not compartments per se, are generally enclosed in fire resisting enclosure to protect adjoining areas. Each flat has to be a compartment so unless it was part of the flat (i.e. containing only the flats distribution board and accessed from a door in the flat) you would expect the wall facing the flat to be a compartment wall.

Doesn't look big enough for a refuge either!

Does it obscure the location of and delay the access to and opening of the exit? Common sense should provide an answer.

If installing to BS5839 they should as for Grade A systems BS5839-6 requires them to meet Clause 23 of BS5839-1 for CIE which, amongst other things, requires a one plan. If the system is existing and has sounders in FR it's tolerable if the FRA accepts it and it's a SC=F panel it is tolerable, but any additions should be current. From memory C-tec panels can be set up to operate SC=F

A new doorset should have the correct marked and certified hinges - however many older existing fire doors predate the existence of such schemes and requirements and will have unmarked hinges. If these are of the correct rating for the weight of door and off high temperature melting point, which if the originals they should be, them there is no retrospective replacement requirement, just like the whole doorset, if still in good working condition need not be certified if a fire doorset to the standard at the time of installation and this is acceptable to the FRA.

What Grade of system? If Grade A then they should have been fire cables since 2002 and sounder cables should since...for ever! Red PVC is often used to hide the fact to a casual observer that they have used non FR cable in order to reduce costs. If the sounder circuits are PVC this is a critical non compliance and has to be rectified. You can't certify a post 2002 system as compliant with the standard either where the detection zones are non FR even if the sounders are FP. If it is only the detection zones an agreed variation may be possible but the fire alarm designer, client, fire risk assessor & enforcement authority would need to agree it and the control panel would need to be set up to operate as 'Short Circuit = Fire' rather than the modern default of 'Short Circuit = Fault' to compensate for the non FR detection cabling so it's destruction by fire would result in an alarm rather than a fault.

Yes - any building containing 2 or more dwellings, even if there are no internal common areas, requires a written fire risk assessment as even with no internal areas the external structure is common

If it's in a block of 2 or more flats then yes - even if there were no common internal areas! It would be the building freeholder's responsibility.

DUPLICATE POST BY OP SEE

Holiday lets are generally treated the same as commercial sleeping risk, eg. hotels so I would use the sleeping risk guide, minimum L2 fire alarm, simultaneous evacuation, etc - especially as you aren't normally allowed to have mixed commercial and residential off the same stair anyway unless full evacuate