Blocking up Air Bricks

[Ex-repairman]

Hi all

Our house was built in the late eighties of what I would term 'standard' construction. By that I mean twin walls and cavity - if that's the right expression! There were/are two air bricks, one in the lounge and one at the top of the stairs. I was under the impression that the one in the lounge was there due to having a back boiler in the room and when this boiler was removed I blocked up the air brick (using temporary methods) to keep the room warmer. First question is; is this ok? Second question is; would there be any problem blocking uo the one on the top of the stairs as there is an awful draft coming down the stairs which are in the dining room?

I should probably add that we don't have a hall as such. The door from the lounge (where the back boiler used to be) leads into the dining room. The new boiler is now located in the loft with plenty of ventilation.

In short I guess I'm asking whether you believe these air bricks were put in to give ventilation for the old boiler, or for some other reason? If the latter, am I going to regret blocking up the one in the lounge.

None of this was a problem when I was younger and didn't feel drafts!!!!

Many thanks for your time.

Nick

 

[^woody^]

The lounge one may be for the fire, and the landing one for a boiler or just fresh air.

If you want to block the landing one, it may or may not have aa effect on humidity you'll just have to try it. Ventilation is a good thing, but if its an issue then try blocking it.

Have you considered just changing the vent cover to a more controllable one. Also there are vents available which do not cause drafts - but they are about £80

 

[Ex-repairman]

Woody, thanks for the reply. Now you mention it I think my parents have invested in something similar. Didn't even give it consideration for my problem. oops!!

 

[PerryOne]

Woody is probably right on both counts.
However, the high level air brick will always be a problem if you leave it.
Its best to block it up. And stop the draft for good.
The chances are that there is lots of natural ventilation in the property and having a large hole is unnecessary. You can always open a window if you need ventilation.
High level ventilation is always problematical due to high winds and high suction. Even the best vents cannot even out the differences in wind pressure.
Perry