O
Old Mod
So you sound like you know what you're talking about tomorrow, basically if it is anhydride stick an antifracture mat/ decoupler down with an anhydride specific adhesive like anhyfix.
It will need a prime coat first.
Stick your decoupler/antifracture mat down and then you can use regular cement based adhesives on top.
If you don't use an antifracture, you'll have to use the anhyfix to stick the floor, but general opinion of most is that using an antifracture affords so many benefits it's worth it, even if it's not a heated screed.
If it's sand and cement, which sounds doubtful, tile in an conventional way, still using expansion joints. Which for a best result should be actually cut into the screed not just in the tiling.
Oh ok some heating, best stick to the 40m2
Well that gives you a good excuse to push for the antifracture/decoupler too.
You can use a cold joint as an expansion (mastic) but not perfect.
That's basic info but should help you thro the first conversations.
So rest is up to you.
For now anyway.
It will need a prime coat first.
Stick your decoupler/antifracture mat down and then you can use regular cement based adhesives on top.
If you don't use an antifracture, you'll have to use the anhyfix to stick the floor, but general opinion of most is that using an antifracture affords so many benefits it's worth it, even if it's not a heated screed.
If it's sand and cement, which sounds doubtful, tile in an conventional way, still using expansion joints. Which for a best result should be actually cut into the screed not just in the tiling.
Oh ok some heating, best stick to the 40m2
Well that gives you a good excuse to push for the antifracture/decoupler too.
You can use a cold joint as an expansion (mastic) but not perfect.
That's basic info but should help you thro the first conversations.
So rest is up to you.
For now anyway.
