I have a new timber frame house and i drilled a small hole through the wall to get a cable outside. I have since discovered i should not have done this as i also drilled through the vapour membrane, but i wasn't really thinking about it. is this a big mistake or will i get away with it as the hole is tiny.
Take a look at any one of our damp projects and ring the phone number for Property Repair Systems. They give free, no obligation advice and we recommend them. They will tell you what you need to do (if anything) and will also be able to supply you with anything you need to do it with but will certainly not try to sell you anything you don't need