B
Bonirl
Guest
Hi, I'm fitting a new extractor fan in my kitchen above the hob. I want to vent through the wall to the outside. As the house is a wood framed house I've been told that, by drilling through the wall, I might damage the damp proof membrane between the interior and exterior walls. I'm sure I'm not the first person to ever attempt this but I am concerned about causing dampness in the future. Any advice?