Does floor levelling compound work ok? I will be tiling over it if it does and how can i damp proof the floor?

Question

before i level it? I currently have a conservatory that was built on a concrete patio.

Answer 1

I've never got on with floor levelling compound. A bag of it doesn't go far at all. Depends how much you have to level, it could work out pretty expensive. On relatively flat/level surfaces where a few dips/hollows need bringing up you could use it economically I suppose although in those circumstances I generally use tile adhesive to do the same job. It doesn't have to be like a snooker table for tiling over, although you don't need high spots that may become a nuisance once you start tiling. After you to get to that stage use "synthaprufe", two coats, to get your damp proof membrane, brushes on. Then tile.

Answer 2

Hi Paul
Yes levelling compound does work 'Wickes' sell a great product can't think of the name. Make sure you put the correct amount of water in mix and pour. You mention that you have a concrete patio so to damp proof this now will be difficult. A damp proof membrane is layed before concrete is poured. However rather than laying self levelling compound if you have the clearance lay the damp proof membrane and lay a screed of 50mm. Good Luck

Answer 3

If you're trying to remove a slope, it works just fine. But it will use a lot of material if it's a substantial slope. Be sure to prime the floor with the recommended primer first. Custom makes an easy to use self leveler. Also, make sure the floor hasn't been sealed. If water penetrates the concrete, it's probably not sealed. If not, you will need to remove the sealer to get anything to adhere. When setting the tile, use an appropriate notched trowel, don't just lay it on heavy! The bigger the tile, the bigger the notch.

Answer 4

Self-levelling screed.

It's liquid enough to flow and settle at one level.

If the conservatory is already built then there is little point damp-proofing.

I wouldn't bother with the self-levelling either. Just lay the tiles using a cement-based adhesive. You can use it nice and thick.

Answer 5

first go over the floor with latex self levelling compound ...then paint the floor with syntheprufe ..this is a bit smelly but it is the best on the market ..at least two coats ..throw a bit of sharp sand over second coat to give extra key to floor adhesive ..then tile over

Answer 6

Self levelling can make you bankrupt, Get a builder to do the job properly so that you have a totally level floor.
My son had to do a similar job, and he had membrane laid, then polystyrene foam, then sand and cement screed on top, it worked out LESS than a completely solid floor, and warm into the bargain.
In his kitchen area he got underfloor heating installed, but NOT under the units. NO RADIATORS

Answer 7

Don t waste your money on it. I have tried it 3 times. It simply does not work. It does not self level , it leaves high spots and dips all over. It does not stay liquid long enough to flow out level. As another contributor wrote, get a skilled builder to lay a thin screed,

Answer 8

Use A skimcoat that is a "two parter"
The powder will do the leveling when added to the liquid which should be Latex. The Latex will seal the floor for moisture!
Cheers!