[Closed] Plumbingtrackworld - installing shower question

what is the wall build up?

Ideally if stud the plasterboard will be the correct type e.g. Gyproc Glasroc H Tilebacker or some other proprietary tile backer board. You can tile onto this.

If solid wall you can tile onto the render.

No rubber linings required but make sure you use waterproof adhesive and finish off with waterproof grout and sealant at perimeters

Edit. FYI B Regs documents (Wales & England) can be downloaded [url= http://www.planningportal.gov.uk/buildingregulations/approveddocuments/ ]here[/url] but I don't think you'll find them much use for what you've just asked.

Thanks - I've been looking at e.g.[url= http://homeguides.sfgate.com/tile-over-rubber-membrane-shower-52314.html ]http://homeguides.sfgate.com/tile-over-rubber-membrane-shower-52314.html[/url] and wondering if it is a more efficient solution, bearing in mind that if my shower leaks the person in the flat below will be a bit unhappy. Is this "deck mud" stuff hard to work with? Is it something any plumber can do?

We used an appropriate cement-board on a stud wall, as per creamegg's advice, and additionally used the [url= http://www.mapei.com/public/GB/pdf/ShowerWaterproofing.pdf ]Mapei Mapegum[/url] waterproofing kit. It provides tape and a plastic strip to seal the corners / edges bewteen the wall and shower tray. Tile over (waterproof adhesive), waterproof grout, silicone sealant in the corners and join to the tray.

But from your link, that product suggests you have a wet room rather than a shower with tray (although I am a bit confused as I wouldn't have thought you would want to put in a concrete floor above a "flat below")?

I guess it's sort of like a wetroom - there is no shower tray as such, and there is a drain in the bathroom floor as well as in the shower floor.

We overhauled our bathroom not too long ago - couldn't easily use a tile backer so used that Mapei stuff onto normal plasterboard- forms a nice waterproof barrier that you can tile straight onto.