Is this an Air Brick?

Jazz1966 · 2026-07-13T07:33:17+0100

Hi,

Current building regulations state that an opening on an external cannot be with 30cm of a boiler flue.

In this property, all the properties seem to have an air brick (at least I think that's what it is), above and within 30cm of the boiler flue. I looked up and down the street and all the houses have the same.

I have attached pictures.

1. Is this an air brick? If not what is its function?

Wayners · 2026-07-13T08:19:57+0100

Yeah.
You are correct.

It happens.
It shouldn't.
I have similar and it's just marked as not to regulations on the boiler service paperwork.

securespark · 2026-07-13T08:26:49+0100

It could be a vent for a cooker hood.

I have one just like that.

Or is that effectively the same thing in terms of a flue?

blup · 2026-07-13T08:28:57+0100

Could it be a cavity tray weep hole brick, there appears to be exception to the 300 mm rule if fire resistant materials are used

danfre · 2026-07-13T08:32:52+0100

No exception, the 30cm distance is for product's of combustion to safely discharge without re-entering property

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Is this an Air Brick?

Jazz1966

Attachments

Wayners

securespark

blup

danfre

DIYnot Local

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