Advice on decoupling and adhesives.

[BMcN]

I am looking to tile two thirds of my downstairs.  I am looking for some advice on decoupling and which adhesives to use.

 

The screed is cemfloor (cement based flowing screed).   I see Ditra mentioned a lot.   Is there a massive advantage to it over something like this?

 

Also, are they suitable to cross from one screed section, over the 4inch block and onto next screen section?   I would prefer to not have a joint as one will be in the family room open plan area.

 

Next what adhesive both below then on top of the decoupling?  (tiles will likely be 600mm porcelain).

[wozza]

We have Cemfloor screed - we used Tilemaster Setaflex adhesive.

 

We also used Ditra matting and we have 1200 x 1200mm porcelain tiles.

 

We fitted Genesis expansion joints in each door way and also across one section of the floor as it is longer than 8 meters.

 

I cannot comment on the matting that you have linked - we chose Ditra as it has a proven track record.

 

We also used the perfect level master tile leveling system.

 

 

 

[BMcN]

Thanks for the reply.  Did you prime the floor?  And Tilemaster Setaflex below ditra then for tiles too?  

[wozza]

Yes we used a primer on the floor, not sure which now, and yes the Setaflex above and below the Ditra. 

 

[CC45]

DITRA used upstairs on boarded floors - seems good to me.  Not an area you want to make a cockup on really...