self-levelling screed for wet room floor?

[grassyknoll]

To prepare the concrete floor of the wetroom I'll need to get it level enough for tiling. Can anyone advise me on:

a) will self-levelling screed be suitable and if so up to what depth?
b) is such screed really 'self-levelling' - does it need any work to get it level after being laid?
c) is it better/easier/cheaper to use than ordinary concrete?
d) should it be tanked?

I'll need to cover an area of approx 3m2 and most of the area will require a depth of screed up to 2cm.

Ta

 

[DHTiling]

Mapei ultra plan maxi will do 30mm in one go...I would tank it especially with bieng SLC'd..

3 sq mtrs will not take much doing...how are you forming your falls to the drain.?

 

[grassyknoll]

Well, I'm told it's possible to form them in the screed itself, or failing that in a new concrete layer. Do you think it's feasible?

 

[DHTiling]

You can actually get a 20mm thick tray former from wetdecs and then screed upto that...the falls will be alot better then..

Its the tuffdecs 2 tray...have you installed the drain area yet..?

 

[doug boardley]

what about using something like a wedi former?

 

[grassyknoll]

The drains are already in situ, courtesy of the previous incumbents here. There's a gulley in the existing concrete floor over which was the (very) old shower tray. I can post a couple of pics if that will be of any use?

 

[DHTiling]

what about using something like a wedi former?

They are 40mm thick

The drains are already in situ, courtesy of the previous incumbents here. There's a gulley in the existing concrete floor over which was the (very) old shower tray. I can post a couple of pics if that will be of any use?

Yes..pic would be good.

 

[White Room]

Wish someone had told the builder I've been working for about pre formed trays before his attempt at screeding the shower area:incazzato:

 

[grassyknoll]

They are 40mm thick




Yes..pic would be good.

Right, bear with me for a few mins. Trying to copy them over ...

 

[grassyknoll]

2 x pics herewith. One of them shows the existing width of the room, but that will change when I take down the partition wall and move it back.