Floor levelling - TilersForums.co.uk | Tile Forums

madsyko · 14-01-2008

Hi,

Need help with a kitchen floor. Customer wants floor levelling prior to tiling so it makes it easier to fit new kitchen. Trouble is that it's an old house and the floor drops about 50mm from 1 end to t'other. Does anyone know of a levelling compound that will cover this, or am I better off screeding or even steering well clear!!
I hear Weber do a compound that can have another layer of levelling compound poured over the top. Has anyone used this?

wayne · 14-01-2008

ultra do one that will do 50mm in one pour. go to the instarmac website and check it out

gaz4266 · 14-01-2008

Standard self leveller can be bulked out with 6mm stone

**Dave** · 14-01-2008

You don't always have to get a floor level ( with a spirit level )...sometimes it just a case of getting it flat to tile onto.......

**brian c** · 14-01-2008

The weber SLC is called WEBER.NIV PLUS and can be used up mto 25mm,so you would just put two layers on in your case,remember to prime floor first .

Leatherface · 14-01-2008

Hi it's old leatherface again
yes the re is a very good self levelling compound that will do up to 50mm in one go without chippings - Mir X Plan - regularily advertsed inTile and Stone Journal - for a bit of info try http://www.pureadhesion.co.uk/product/198/mira-x-plan-self-levelling-compound-25-kg

also I would be interested to know how you worked out the drop on your floor ? Was it a guesstimate or did you use the datum and staff method ?

Also I partially agree with DH - However you have to take into account the type of tiles you are fixing !!! 30cm x 30 cm ceramic or similar then does not need to be 100%.
BUT - If you are laying 600 x 400 limestone in brick bond then your floor needs to be pretty damn level - otherwise it will cost you dear in time and adhesive to avoid lipping and get your tiles level.

Have used Mira before - very good

**devonmark** · 15-01-2008

ardex k15b...upto 35mm without chipping..Mark.

**grumpygrouter** · 15-01-2008

Quote:

Originally Posted by dhceramics

You don't always have to get a floor level ( with a spirit level )...sometimes it just a case of getting it flat to tile onto.......

AGREED!

Grumpy

madsyko · 15-01-2008

Cheers everybody.

Proper Job · 16-01-2008

ok levelling a floor you can use most self levellers to go up to that thickness but not in one application. For a screed you need to make it a min of 25mm thick normally 50mm in your case you would be talking about 2 inches which screed could be recommended but the whole floor needs to come up by that much because if you taper it off to make it thinner it will crack which you would have to do to meet your high point. Self leveller sets a lot faster mate and if trowelled and mixed correctly you can't go wrong. You must prime the floor and prime it well and make sure there is no gypsum plaster around because this will react and may make it fail. Best of luck

Leatherface · 17-01-2008

Quote:

Originally Posted by Proper Job

ok levelling a floor you can use most self levellers to go up to that thickness but not in one application. For a screed you need to make it a min of 25mm thick normally 50mm in your case you would be talking about 2 inches which screed could be recommended but the whole floor needs to come up by that much because if you taper it off to make it thinner it will crack which you would have to do to meet your high point. Self leveller sets a lot faster mate and if trowelled and mixed correctly you can't go wrong. You must prime the floor and prime it well and make sure there is no gypsum plaster around because this will react and may make it fail. Best of luck

Proper Job - mate !!

Please read my reply !
Look on the website !
Phone the manufacturer !

Yes you can self level up to 50mm in 1 application with no shrinkage or cracking ( with no chippings ) If you use the right gear.
Regards
L