is that what there there for? i've got about 5 randomnly popped into wall.
why didnt i think of that, i've spent so much time trying to find a black and white answer i didnt think to just tape them up and see what happens!
if they are only there as a nicety for damp then what the hell...
Hello, first time posting but long time viewer of DIYnot.
I have a freezing cold draughty kitchen, the culprits are ventilation ports in the single skinned walls of my 1900 home.
I would like to close some up but am aware they've been put there for a reason.
i would like to know if i...