22-11-2020, 01:05 PM
This is my latest effort (done yesterday). I had some waterproof membrane from a building job on the house. It was initially stuck down with with double-sided carpet tape (very sticky stuff) and then taped round with high-tech & high adhesion building tape. Whether that holds up to the challenges of being constantly damp through the winter is anyone's guess. I think most of the water comes through where the speaker is installed. I'm still interested to find out what other people have had success with as I'm getting tired of failed experiments and having to re-do the same job multiple times!
