I certainly have tested it with a hose, no leaks which is a relief but the next shower will be the real test.

Yes there is a gap between the studs and the cladding, in this gap is a thin layer of insulation and then empty space

Thank you both @MitchellMc @TedBear again, I managed to locate the studs from inside and then cross referenced the measurements and lined up from the ...

Thanks @TedBear,I was using a stud finder but to no avail, I then drilled a few 2mm holes but again to no avail which is why I now feel like there are ...

Thanks for that @TedBear, I think with yours and Mitchell’s advice I’m all sorted.I’ll share a photo of the finished product once on the wall. I’m al ...