Deep breath in case I get shot to pieces but while doing my last bathroom I did my usual tape and 2 coats tanking compound on the plasterboard around the bath. The tanking kits aint cheap and seeing as I always use waterproof adhesive it got me thinking - is tanking really necessary ? Any pro tilers got any thoughts on this?

if you are going to use the bath as a shower as well you need to tank the walls

hi hamish

this is why I thought tanking was necessary

Tanking - do you bother?

I am redoing my bathroom. The bath had a shower over. The tiling was 45 years old - not tanked. I know that for the last 20 years the shower has been used most days. There were no tile problems.

Tiles were onto sand cement render layer with adhesive.

Originally Posted by easyt

I am redoing my bathroom. The bath had a shower over. The tiling was 45 years old - not tanked. I know that for the last 20 years the shower has been used most days. There were no tile problems.

Tiles were onto sand cement render layer with adhesive.

Plasterboard was not available forty five years ago easyt, many people use the stuff in their bathrooms nowadays and its for that reason that modern up to date tanking solutions are available.
Many people used to drive their cars with solid tyres and laughed at the idea of inflatable ones, I know which version I would prefer.........

Originally Posted by easyt

I am redoing my bathroom. The bath had a shower over. The tiling was 45 years old - not tanked. I know that for the last 20 years the shower has been used most days. There were no tile problems.

Tiles were onto sand cement render layer with adhesive.

you were lucky easyt. my shower cubicle lasted 6 years

Originally Posted by GirlRacerRed

you were lucky easyt. my shower cubicle lasted 6 years

What was the substrate GRR ??

Originally Posted by easyt

What was the substrate GRR ??

plasterboard

Originally Posted by diamondtiling

Plasterboard was not available forty five years ago easyt, many people use the stuff in their bathrooms nowadays and its for that reason that modern up to date tanking solutions are available.
Many people used to drive their cars with solid tyres and laughed at the idea of inflatable ones, I know which version I would prefer.........

I was not imtending to tank the walls this time just rapidset onto the render and a 'waterproof' powder mix grout. Am I being unwise ?

grout isn't waterproof. it will eventually break down over time. the same with adhesive.

if water gets in behind the tiles, it will break down the grout or the adhesive from behind. having a tanking layer between the tiles and plasterboard is like having a goalkeeper on a football pitch

Originally Posted by GirlRacerRed

grout isn't waterproof. it will eventually break down over time. the same with adhesive.

if water gets in behind the tiles, it will break down the grout or the adhesive from behind. having a tanking layer between the tiles and plasterboard is like having a goalkeeper on a football pitch

good analagy liz..................

Originally Posted by GirlRacerRed

grout isn't waterproof. it will eventually break down over time. the same with adhesive.

if water gets in behind the tiles, it will break down the grout or the adhesive from behind. having a tanking layer between the tiles and plasterboard is like having a goalkeeper on a football pitch

So long as its not the england keeper...........

Originally Posted by easyt

I am redoing my bathroom. The bath had a shower over. The tiling was 45 years old - not tanked. I know that for the last 20 years the shower has been used most days. There were no tile problems.

Tiles were onto sand cement render layer with adhesive.

I was around in those days, and have been back to re-tile bathrooms I randered and tiled using CTF2 adhesive, 40 + years ago. What a job it is getting the tiles off, if I had my way all showers, wetrooms etc. would be rendered. But with modern backer-boards and tanking systems we should see an end to these nightmare jobs. Get the right people in, using the right methods imo.

If you think I should tank the reader Diamondtiling what would you recomend? Also I have a smal area to render before tiling. I was going to use rapidset as the cement for this strip. If I need to tank this do I need to wait? I intend to start tiling next Tuesday.

EasyT

Thanks everyone for feedback, I will carry on tanking as usual then, and my bathrooms should look good for years

Have a look at this link, there are loads to choose from.

Which waterproofing/tanking products do you use...