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Technical Advice / Re: delayed relaease mechanism on final exit door (and need for signage)
« Last post by AnthonyB on April 08, 2025, 08:27:23 PM »
You would think so! The only compliant ones I regularly see are at Costco and they are suitably signed.
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Technical Advice / delayed relaease mechanism on final exit door (and need for signage)
« Last post by bevfs on April 08, 2025, 11:51:39 AM »
A delayed release on final exit doorset on commercial shop(,to reduce shoplifting)
looking at BS7273-4 2015 ,would this not need top be signed appropriately, to inform relevant persons that the door will not release for (whatever specified time )in seconds.
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Q & A / Re: Compartmentation
« Last post by JHoe5152 on April 02, 2025, 03:28:09 PM »
Thanks Anthony, that's really helpful.

Hope all is well with you.
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Q & A / Re: Compartmentation
« Last post by AnthonyB on March 26, 2025, 08:51:13 PM »
The gaps in the first set of pictures do look like they should be sealed using a product/system approved to EN 1366-4 for linear gap seals.

With respect to the second set if the hatches form part of a compartment line where, if breached, fire could spread beyond the compartment, then they should be metal otherwise they may be fine as they are. The fire strategy and drawings would indicate this.
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Q & A / Re: Compartmentation
« Last post by JHoe5152 on March 26, 2025, 06:00:57 PM »
Anthony

We had a fire stopping contractor visit the site to price things up for remediation and he brought along some sort of fire stopping expert to advise on the fire stopping requirements.

When looking in one of the cupboards inside one of the flats he made a comment on the plastic access hatch to access the hidden sewer vent pipe (SVP) and said they need to me metal. He made no comment on the plastic electrical distribution box in the same cupboard. The hatch is located in a fire rated cupboard with FD30S doors fitted.

Is he correct in stating the access hatch needs to be metal instead of plastic? I have attached photo so can see what I am referring to.

regards

Joey
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Q & A / Re: Compartmentation
« Last post by JHoe5152 on March 26, 2025, 04:52:27 PM »
Hi Anthony

Please find photo's attached as requested. I have spoken to a plasterer and he can't see why they haven't plastered to the top of the walls.
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Q & A / Re: Compartmentation
« Last post by AnthonyB on March 20, 2025, 09:10:46 PM »
Do you have any photos?

A service riser can be a protected shaft and open at each floor with no horizontal seal, but the vertical walls (& doors/hatches in them) should be complete and of the correct fire resistance.

Missing/incomplete inner plasterboard layers to walls of riser shafts is a not uncommon defect in modern builds, usually corner cutting where no one will see.
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Q & A / Compartmentation
« Last post by JHoe5152 on March 20, 2025, 07:48:14 AM »
I have been checking the compartmentation of service risers and have noticed that the plasterboard don't reach the ceiling in any of them. Is there a reason for this or is this just shoddy workmanship?
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Technical Advice / Re: Heritage Buildings
« Last post by wee brian on February 06, 2025, 09:32:50 PM »
english heritage published some stuff on doors that might be worth looking at.  TBH heritage trumped compartmentation in Windsor Castle and Notre Dame.
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General Interest / Re: FRA Accreditation/Cert/Register costs
« Last post by AnthonyB on January 15, 2025, 10:00:46 PM »
BAFE will be ?2k or ?3k (or more if you have loads of staff) initially then you will drop at least ?1k a year keeping it.
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