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Bricklaying & Repointing

Duct hole next to doorway

Anonymous user 16/03/2024 - 2.35 PM

Hi, I am looking to install an extractor fan (150mm) in my kitchen. The only space for this is next to the back door (right next to it), will I cause structural issues with the door lintel by cutting such a large hole in the wall under where the lintel is supported? Many thanks

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4 Answers

John Crawley

Rating: 4.9 out of 5
Hook
To be honest it's not the best place to install a vent, any external lintel should have 150mm bearing and if you were lower than the bearing to take such a size away from the reveal would be structurally detrimental. Can you not go up into the ceiling and form a boxing and run it between the joists to the outside?? Hope this helps
Answered27 September 2020
23

EB Builders Ltd

Rating: 5 out of 5
Finchley Church End, London
If you open the whole with a diamond whole cutter you want cause a structural problem
Answered27 September 2020
1

Anonymous user

Impossible to say without more details. Doesn’t sound promising though.
Answered27 September 2020
0

Anonymous user

In principle the first answer is correct as you would never introduce a soft object like a duct under a structural lintel .The other negative aspect to this scenario is that by placing any extract duct close to a door or window is that with a slight breeze the extracted fumes will get blown back into the building which is not only unpleasant it also doesn't comply to building regulations.
Answered23 October 2020
0