Hi All, I have a 1960's house where the only ventilation in the cavity wall is where it's open at the top. As I have a (very minor) damp problem in one corner of the house, I was considering fitting a couple of air bricks, just enough to create a through draught.
I have no problems with process of cutting a brick-out and fitting the new, I was just wondering if anyone else had done this and if so is there anything I should/should not do, or watch out for?
Many thanks for any guidance,
Martin.
I cant think of anything - as long as youre not cutting a brick that forms part of a supporting arch :)
And if the bricks are a soft type, one would usually use soft mortar to prevent brick damage, typically 1:1:6.
Regards, NT
Sir, In my first house, I found my cavity was full of ****, so once I had the bricks out I got my arm in there and cleaned it out ......
Obviously, don't breach the damp proof cource with your new work ....
Rick
You'll probably find it more effective to install cavity insulation instead. This is impervious to water and will reduce condensation. It will also save you masses on fuel bills and improve comfort inside.
Christian.
Are you positive that cavity wall insulation is impervious to water?
IIRC from some building guidelines cavity wall insulation is not recommended in some parts of the country,(mainly the west coast of Scotland). I had thought that this came down to the guidelines concerning typical wind speeds and rainfall, and that there was then some risk of wind driven rain breaching the cavity.
David
I had some that got wet: seemed to hold onto the water well enough. Glass fibre is of course completely unharmed by water.
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