Got 115 sqm metres of porcelain to do through 7 rooms on this screed. Ufh throughout it all. Would you recommend ditra or not? The screed doesn't seem to have any laitenance on it but does it still need sanding,if so what do you recommend to sand it with? Only done small areas of this screed before so used a belt sander or cupped grinder for them cheers.
S
Stef
All calcium sulphate screeds must be sanded to remove the laitance, if you don't there's a very good chance the tiles wil lift clean off the screed.
With porcelain tiles I personally wouldn't bother fixing Ditra, I would give it one coat of TileMaster prime plus (5-1) & then stick them down with Anhyfix.
This is after I have tested the floor to make sure it's dry enough to tile.
With porcelain tiles I personally wouldn't bother fixing Ditra, I would give it one coat of TileMaster prime plus (5-1) & then stick them down with Anhyfix.
This is after I have tested the floor to make sure it's dry enough to tile.
G
goz
Same as above
S
Stef
I would get a test done on that floor before I even thought about tiling it especially if your fixing porcelain.
I would be force drying it after so few weeks.
S
Stef
I would be removing that laitance asap as it will end up baked on the surface once that heating gets commissioned.
J
J Sid
shouldn't it have been removed a few days after the screed was laid? Ideally
S
Stef
Yeah, the sooner it is removed the easier it is,
It will be well stuck to the surface by now & will need to be mechanically removed.
Could have removed it with a floor scraper in the 1st week.
Heating should also have been commissioned & left running weeks ago & they could have force dried it.
S
Stef
That's bad advice to start with, you can force dry these screeds after 7 days.
There are similar tiling threads here
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