Re: waterproofing ????????????
yours and many others which is why tanking should be done on every new build.
I'm a DIYer and waterproofing/tanking is an absolute necessity in my opinion. My 7 year old new build house has a ruined lounge ceiling where the en-suite shower room has leaked water through the tiles and grout. The shower cubicle was completely tanked before I tiled it again using the right materials.
yours and many others which is why tanking should be done on every new build.