Mike North

On a further point As for the door certification, this is a legal requirement under regulation 38 and should of been included in the OEM pack at handover by the developer.

I have to agree to a certain extent with the developer, the fire doors should have been inspected every six months (BS 9999, I.6.2 Fire doors) they should have been inspected 12 times. Did any statutory inspection pick up these defects? And why did you not go back to the builder with this information. You may have recourse to the party that conducted the previous risk assessments for the building if they did not highlight the defects to the doors.

To ensure that the door fits, each door is measured. Lead times are currently running at 8 to 12 weeks for a fully certified door. Generally, the have a range of standard door sizes, but you still have to measure the opening to find out which standard door will fit. We have several options whilst waiting for a delivery, enhance repair the door, replace with a blank door, close the bedroom, close the flat, close the building or keep a waking watch.

From what I have found in my experience, even with modular builds, off the shelf doorsets seldom fit without modification. That’s why we measure every door that fails before ordering the new door. It works out cheaper in the long run.

All fire doors must be either 1 Self closing 2 Keep locked shut Perko closers are no longer permitted as closers on fire doors since they don’t latch the door from a narrow angle.

That's why you survey, measure the door and then order the correct size

There should be minimal adjustment to the leaf or frame if the door is correctly measured. The frame should be fixed and seal to the opening giving a door to frame gap of 2 to 4 mm. As Neil says if the surveyor dose a decent job there should little adjustment, unless you are installing door blanks

If it is only a toilet then no, if it has a cloakroom attached then yes

Provided you get building reg approval, as many as you want.

Flat entrance, this should be a FD30S door, it maybe a nominal door if it gives the same protection. (No holes, approved letter box, 3 hinges, etc) If the flat is in shared occupancy, then it’s a HMO, and all bedroom doors must be fire rated unless they are living as a family.

Duplicating the doors to make a lobby is not an issue providing that they open to a minimum of 90deg so as not the encroach on the existing doors. You may want to duplicate the fire exit signage above the doors

ADB purpose groups

So basically for the buildings shown constructed of sandstone blocks and brick, its not an issue

Building regulations say that when building work is undertake on an existing building it should ensure that the building is no worse in terms of compliance than it was before the work started. However, there is no requirement to improve the levels of compliance. It is an established principle that building regulations should not be applied retrospectively. The ‘non worsening’ clause recognises that it may not be feasible to try and apply modern standards to old buildings. If it was compliant, then it still is compliant as the changes to cladding are only above 11m

Its only an issue over 11m

All depends on the size of the room, the location in the building, is it on a dead-end, what is the process. But you could start by looking at inner rooms.

But it can be used as the basis of an argument

The attached may be of interest Determination_on_the_suitability_and_sufficiency_of_a_fire_risk_assessment_in_a_hotel....pdf

I would agree that the design meets 2.1 and 2.2. I would look at 4.2 b, that may be a problem

Where is the kitchen extracting to? What suppression does the cooking use? The travel distance of 18m is extremely fortuitous, but what about furniture? The note about travel distance A to D is next to C, I’d move the note to avoid confusion. The private area could be considered a dead end. To avoid ambiguity, I would draw the effective angle with a leader line and angle dimension. Are both stairs protected with fire doors? Is the occupancy the same for both floors?

Did you have the circuit tested prior to the start of the works, if there was a fault who would be responsible? If the works were just to replace the fittings, what do you need a test certificate for? Would you expect the system to be certified if you changed a single fitting? As for the discharge test, I would just continue this as normal.

Yes

The doors were approved by certifire, they must have a copy of the original test evidence. Leaderflush-Shapland-Laidlaw_EnduraCor_Technical_PDS.pdf (specifiedby.com)

Technically no. But the insurance company may ask about your competency to conduct a fire risk assessment before they payout any claim.