Air bricks and ventilation

ashhyland

Hi,

This is my first post and wondering if anyone can please give me some friendly words of advice.

I recently purchased my first house which needed the rendering re-doing as it had blown. It is only on about half of the front of the house. There was an air brick/vent under the bay window that was covered over when the rendering was re-done (he said as we have cavity walls it wasn't needed). I now realise we were naive and this airbrick had nothing to do with cavity walls but in fact is to ventilate the sub floor.

Now I am panicking slightly that this being covered up will lead to damp and rotting of the timbers. We do have a further 3 airbricks at the front, two at the side (semi detached house) and three at the back.

So my question is if we install a further two airbricks either side of the bay window will that be sufficient to replace the one he rendered over. We have opened up the hatch to the sublfoor and it is cold down there with a breeze.

Thank you for any advice in advance!

illusionek

It will be more than enough. It sounds like you have already sufficient ventilation.

brightontraveller

Find internal face of air brick Use a long drill bit , Drill through existing air brick holes from inside house to the outside,