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Vents in fire doors


Guest Andrew Russ

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Guest Andrew Russ

Fitting Intumecent Air Vents into a half hour fire door.

Since the grenfeld incident has there been a change regarding the fitting of vents into fire doors, a supplier is telling us that we cannot now fit ???

It fir the top open air floor of a multi story car park.

Any assistance would be appreciated.

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It all depends on the type of fire door, if it is a FD30 fire door then it could be acceptable, if it is a FD30s fire door which is designed to control cold smoke then it is a no no and you would need to fit an active device that would control the passage of cold smoke and hot gases/fire. 

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  • 4 months later...

tom its not hard to find out. ive just completed fire door fitting and maint courses and inspectors course at BRE.

you should not cut any apertures into doors for glazing or vents unless you are approved by the manufacturer.

if you fit it from a blank you wont have any certification as it will not have been tested to destruction, no certification = non compliance with building regs

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I disagree if you fit a blank and construct it in accordance with the global assessment that should come with the door it is very likely to be accepted by building control as a nominal fire door.

However, I do agree you need the appropriate training and if a door cannot achieve the minimum standards of the appropriate guidance then it should be upgraded to the latest standard.

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  • 11 months later...
Guest Ian Robertson.
On 09/06/2019 at 18:02, Tom Sutton said:

No it would be a nonminal fire door which there are many out there and can be acceptable to many BCO/AI,s, in fact at the end of the global assessment there is a document thats makes this point.

I agree with you on this Tom.

The case Daveol makes then every notional / nominal fire door assembly would be non compliant as it has not been tested as a complete unit and certified.

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  • 7 months later...
Guest RhodesWorksPP

Hi all, quick question on vents if I could please?

I've been asked to upgrade a vented FD30 door set, to a FD60s (controlling cold smoke), but have been advised it still requires a vent? I'm not challenging Building Control, or the Architect and will install as requested, I'm just wanting to understand why you would put a vent in a door, where you are installing smoke seals.

Thank you

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What ever is in the room needs good ventilation during normal situations, hence the vent, but in the event of a fire needs to be sealed. Requesting a vent in a door requiring smoke sealing becomes more complex as a standard intumescent vent won't suffice and it needs to be a fire & smoke damper activated by the fire alarm system:

https://www.lorientuk.com/products/air-transfer-grilles/fire-smoke-damper

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