Showerbath area to be tiled... to tank or not to tank!

[henryfire]

Sorry to post yet another tanking query but here goes!

I'm putting a 'P' shaped showerbath into a new bathroom which I plan to tile floor to ceiling. Head of bath is against a solid wall (to which shower will be attached) side of bath runs along plasterboard.

Is tanking a bit excessive for a showerbath? I would definately use it for a shower enclosure, but wondered if a waterproof adhesive (like dunlop do) would suffice. I know I will have to seal the plasterboard with a good acrylic sealer first.

I watched the Dunlop tanking vid posted elsewhere on this site and they only waterproof 1m high in a shower enclosure, in my case the bath will take the brunt of the water.

Any advice appreciated! Well, good advice appreciated

 

[wap]

i pesonally wouldnt bother with tanking. the only time i use it is for wet rooms. totally over the top in my opinion

 

[gcol]

Depends a lot on the size of tiles - small tiles allow much more moisture through and in these cases tanking should definitely be considered.

 

[flyingcat]

but how to define "small"? the size of wall tiles I am goint to use are: 40cm*25cm, should I tank the wall or not?

 

[gcol]

I'd always suggest tanking a shower enclosure no matter what size tiles you use, but if it's just a shower over a bath and using tiles that size, then you should be fine. Having said that, peace of mind comes cheap with a tub of tanking gear.

 

[lancenotalot]

You would be best to tank it,as Gcol says its peace of mind.When stripping out some old bathrooms you wouldn't belive what you find behind the tiles. Even just around a bath area with no shower the moisture still gets through.