what happens if water penatrates tiles in a tanked wet room

[john scurfield]

i know tanking is a watrproof membrane, but if water got behind the tiles the wall would be protected, but would the tile adhesion be weakend by the water

 

[DHTiling]

Simple answer mate..NOPE....as long as you use a cement based adhesive..... and get the correct coverage.......

 

[john scurfield]

so cement based addy is waterproof then dave

 

[wivers]

Yes mate, thats why you can use it in swimming pools.

Cement stuff is great.

 

[DHTiling]

No...it is water resistant and won,t break down in contact with it.....swimming pools etc are done in cement based adhesives and suffer no probs.....

 

[john scurfield]

thanks dave just thinking what is the point of tanking if cement addy was waterproof

 

[wivers]

No...it is water resistant and won,t break down in contact with it.....swimming pools etc are done in cement based adhesives and suffer no probs.....

Ohh Balls you know what i mean lol. I'm taking up cookery!!

 

[john scurfield]

so could this be an alternative if customers dont want the expence of tanking

 

[DHTiling]

Cement based adhesive will wet up if in contact with water and then this will transfer into the substrate if not tanked etc.....especially in wetrooms or area's of constant wetting........so if in doubt tank it out........

 

[john scurfield]

thanks for your advise guys, by the way dave i see you are from Co durham same as me, which part and as i am a newby who or what is lol

 

[DHTiling]

thanks for your advise guys, by the way dave i see you are from Co durham same as me, which part and as i am a newby who or what is lol

N/aycliffe mate and you.?..

 

[john scurfield]

a few miles away in south hetton mate

 

[Holohana]

what if white star had been used and not cement based addy?

 

[grumpygrouter]

what if white star had been used and not cement based addy?

White Star is also water resistant but not to the extent that it can be permanently immersed in water. Moisture would still track through to the substrate and possibly damage it though the adhesive would not breakdown and would still hold the tile - 'til the substrate gave up or, being a disperant adehsive it would evenutalluy give up the ghost. Though it would need a lot of moisture to do so.

Grumpy

 

[Deleted member 1779]

We used cement based adhesive flexible because of so many different materials behind the tiles.

• Wood
• Plaster
• Old tiles
• Cement
• Marine Ply

So everything got coated with BAL tanking kit. I'm sure if a bit of water got behind the tiles now that the cement based adhesive would be man enough to cope.

PS: Not quite sure why the kettle is in the shot. But it was back in 2004

But you can see the total mix of materials hiding behind the tiles. Any leaks and the cement should hold fast !

The living room carpet was unusual host to fixtures and fittings for a few weeks. But we didnt use the loo... Honest !