I want to fit an outside garden tap as shown here https://www.diydoctor.org.uk/projects/in ... de_tap.htm
However, the house is 4 years old, wood framed, and I believe will have a 'waterproof lining' between the outside brickwork and the inner wooden walls.
If I drill through this waterproof lining, will damp get through the wall?
If so, are there any other suggestions to getting an outside tap?