Should my new shower cubicle be plastered before tiling

jockster211

Hiya all

I agree entirely with Razor, not tanking will give you a potential problem, particularly as you have used 'regular' pb. The number of bathrooms/showerooms I've done (& lost count) where the plasterboard is all sodden, joists compromised, flooring rotten, never mind the lingering smell of dampness. We're all moneysavers on this forum, but not to take adequate precautions is asking for trouble. Trust me when I tell you that plasterboard sooks up water like John Mills on his North African trip to Alex. The first you'll realise you've got an issue will be that dirty mark on your kitchen ceiling.

Forget the poster who posted "it seems tanking is a relatively new application. It costs around £150 for supply and fit. Showers have been installed for years without it and have functioned fine, but now that it is available some tradesmen will advocate it as an extra precaution. It's an optional extra and others will tell you that tiles and waterproof grouting (properly maintained) will be good enough." Aboslute tosh. No matter how good the tiling, grouting, installation, water will always find its way out/down/through. You seem to be doing most of the work yourself so get down to screwfix & pick up the dunlop tanking kit for around £45. Whilst you're out go to the local tiling merchants & get some tiling upstand for around £10. This uPVC trim sits on the shower base (siliconed down) & you tile up from it, again helping divert water into the shower tray & away from your wall junction. Use waterproof grout, which it isn't completely, but everything helps. Suggest you use smaller grout spacing rather than larger, say 3mm. When tiling apply adhesive generously & evenly to ensure complete bonding to the wall.

I can tell you that all new build in Scotland must have green or cement board installed, but not sure about south of the border. Is it too late to overclad in green or cement board?

Jockster

TomsMom

jockster211 wrote: »

Is it too late to overclad in green or cement board?

Jockster

It could be. The shower tray was cemented in on Thursday and the plasterboarding done afterwards. I'll mention it to OH though, thanks.

ormus

im a great believer in aquapanel. excellent product.
tanking is just another extra safety method, ok if you want to pay for it and like the extra insurance, but certainly not essential in most cases.