Advice Needed?

[Dan]

I'd seriously try and smash a few up with a SDS though in various places to really see how well they're fixed before tiling. I've seen streams under houses that old. And when the floor came up the substrate slowly washed away.

 

[HardTarget]

I've seen streams under houses that old. And when the floor came up the substrate slowly washed away.

Streams!

I know from putting in the new water mains in with the plumber that the ground was rock hard clay down to 40" (main road to side of the house). The tile that came away when the plumber placed his pipes through I dug down through the black mortar and it was a light sand colour and quite easy to dig up. What adhesives/primers would you recommend? What about the bathroom Dan, would I be better with Ditra or similar or should I prime the ply and tile straight on top?

 

[Dan]

With so much cost at stake I'll let the professional wall and floor tilers recommend what they'd use.

I'm a mere web developer after all. ;-)

 

[Old Mod]

Streams!

I know from putting in the new water mains in with the plumber that the ground was rock hard clay down to 40" (main road to side of the house). The tile that came away when the plumber placed his pipes through I dug down through the black mortar and it was a light sand colour and quite easy to dig up. What adhesives/primers would you recommend? What about the bathroom Dan, would I be better with Ditra or similar or should I prime the ply and tile straight on top?

Prime ply as per adhesive reccomendations and install Ditra and tile.
Any timber substrate is subject to deformation due to expansion and contraction due to temperature change and/or moisture.

 

[Dan]

The quarries, would you Ditra those @3_fall? like Dave would? Just for assurance?

And the "black stuff with soft brown stuff" - think that needs some samples taking? Rather than winging it?

 

[White Room]

The brown stuff could be type 1....

 

[Dan]

Ooooooo - Don't get a sample then! Get a specialist in! Or just tile over it and never touch it. Never thought of that!

 

[Dan]

So quarries: Advice Needed?
Bathroom: Advice Needed? | Page 2

Looks like you could do with a decent Ditra supplier.

But I'm worried now about the brown stuff. If you don't touch it or mess with it and none of it is showing, and the plumber is alive still (I shouldn't joke!) then perhaps tile over it and just don't disturb it just in case. Warn the owners perhaps. See what they'd like to do about it.

Ask the lads at work see what they'd do haha

 

[Dan]

Do you have any pictures of your previous tiling work by chance?

 

[Just Rizzle]

if the tiles have been down since the house was built then taking them up could open a can of worms and cost u a lot of money lay a decoupling membrain over the tiles ditra is the best but others are available make sure the membrin is water proof as some times these tiles are the dpm. as dave said the membrain eleviates any lateral stresses from the floor benieth but I wouldn't worry about expansion as theres no ufh to stick the membrain to the floor I would use a S2 addy such as tilemasters ultimate I would also recommend it for adhearing the tiles to the membrain prime first with tile masters primer. iwould also do the same for the bathroom floor same addys prime 1st good luck

 

[Dan]

Thanks Ray.

 

[HardTarget]

Is this the adhesive Ray? So I would prime then use tilemasters ultimate to stick the ditra to the quarry tiles and then again to stick the porcelain tiles to the Ditra? Thanks for the help lads really appreciate your advice. I wont go near the quarry tiles best left alone as I never knew they used asbestos.

 

[Just Rizzle]

Is this the adhesive Ray? So I would prime then use tilemasters ultimate to stick the ditra to the quarry tiles and then again to stick the porcelain tiles to the Ditra? Thanks for the help lads really appreciate your advice. I wont go near the quarry tiles best left alone as I never knew they used asbestos.

yes tilemaster is the firm they have several addys buy there ultimate is by far the best

 

[White Room]

if the tiles have been down since the house was built then taking them up could open a can of worms and cost u a lot of money lay a decoupling membrain over the tiles ditra is the best but others are available make sure the membrin is water proof as some times these tiles are the dpm. as dave said the membrain eleviates any lateral stresses from the floor benieth but I wouldn't worry about expansion as theres no ufh to stick the membrain to the floor I would use a c2 addy such as tilemasters ultimate I would also recommend it for adhearing the tiles to the membrain prime first with tile masters primer. iwould also do the same for the bathroom floor same addys prime 1st good luck

Thought the Ultimate was an S2...

 

[Just Rizzle]

Thought the Ultimate was an S2...

miss type there m8 had a 13 hr day it is a s2 will eddit