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Flush finish on bifold doors and garden (but have airbrick in way)

Hi

I am having some new patio doors fitted and looking to get that flush finish between inside and out and then onto the grassed area of the garden.  There will be an ACO drain installed as well.

However, there is an airbrick under the area where the patio doors will be installed - whats the best way of making sure that there is sufficient airflow into the house.  I dont really have an option of moving the airbrick as its providing ventilation to the wooden floor part of the house and there is already a concrete slab over an extension part (if that makes sense).

Thanks

Comments

  • stuart45
    stuart45 Posts: 4,597 Forumite
    Sixth Anniversary 1,000 Posts Name Dropper
    Have you got a photo?
  • aj9648
    aj9648 Posts: 1,382 Forumite
    Part of the Furniture 500 Posts
    Yes - here you go
  • stuart45
    stuart45 Posts: 4,597 Forumite
    Sixth Anniversary 1,000 Posts Name Dropper
    So it's a new extension with an air brick and some ducting under the concrete floor to a timber floor at the back, and you want to raise the outside level to the same as the top course of brickwork. 
  • aj9648
    aj9648 Posts: 1,382 Forumite
    Part of the Furniture 500 Posts
    stuart45 said:
    So it's a new extension with an air brick and some ducting under the concrete floor to a timber floor at the back, and you want to raise the outside level to the same as the top course of brickwork. 
    Yes that’s correct Stuart 
  • grumbler
    grumbler Posts: 58,629 Forumite
    Part of the Furniture 10,000 Posts Name Dropper Photogenic
    IMO, you should have asked this question long time ago, before building the extension.  AFAIK, in such cases telescopic 'periscope' vents are normally used on the sides of the door.
  • aj9648
    aj9648 Posts: 1,382 Forumite
    Part of the Furniture 500 Posts
    grumbler said:
    IMO, you should have asked this question long time ago, before building the extension.  AFAIK, in such cases telescopic 'periscope' vents are normally used on the sides of the door.
    Well it was specified that a flush finish is required but the air brick was put there. Y the builder / numpty - now I’m trying to work round it 😩
  • stuart45
    stuart45 Posts: 4,597 Forumite
    Sixth Anniversary 1,000 Posts Name Dropper
    edited 24 August 2021 am31 8:23AM
    Can you get any extra air bricks in at the sides? One air brick isn't enough on that side, but you are going to lose it.
    Make sure you get the detailing right. nowadays this is common on new builds for wheelchair access, but it needs a bit more care. This is one example.
    nhbc-part-m-disabled-access.pdf (newbuildinspections.com)

  • king132
    king132 Posts: 115 Forumite
    Part of the Furniture 100 Posts Combo Breaker
    As mentioned its a daft place to have the air brick in the first place. These would usually be on either or both sides of the face of the back.

    Also the ground level looks quite close to air brick, there should be at least 75mm clearance from the ground to air brick. If you had heavy rain water coming up to your door, it would end up inside the property!

    I would contact your building control inspector first, get him out on site and get him to sort out a better soultion with your builder.
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