Preparation Self Levelling Advice On Sunken Quarry Tiles

Discuss Self Levelling Advice On Sunken Quarry Tiles in the Tiling Forum area at TilersForums.co.uk

Steggy

Active Member
Hi Everyone,

I was hoping someone could give me some advice for how I can get some floor tiles in my kitchen.

I'm in the process of refitting it with help from my father in law. The original floor was vinyl, on top of a mostly crumbled self levelling cement on top of some very unlevel quarry tiles.

So far we've removed the vinyl and the cement, finding mould underneath the vinyl and in a bid to try and level the floor we found that the quarry tiles were sitting on sand.

My original plan was to use some mapei self levelling compound.

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And then this matting from topps tiles.

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And then some ceramic floor tiles from b&q.

But I've just tried to measure the height difference and one corner is about 45mm below the level of the highest point. And I'm worried that I'm going to be spending a lot of money trying to bring the floor level enough to tile on. It's not a huge kitchen 6.5m2 but it looks like I might need at least 10 sacks at £20 a pop, just for the levelling compound.

I'm also a little unsure about what primer I can use on the quarry tiles before putting the levelling compound down.

Can anyone give me some advice on what I should do, or what products I could use? Or even if there is a better solution, or something I've not considered.
 

Andy Allen

Metro specialist & forum entertainer!
Trusted Advisor
Professional Tiler
JOTM Winner
You probably don't have a damp course, which is why they use quarry tiles.
Covering them without addressing the damp course issue is a bad idea.
 
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Steggy

Active Member
I've kind of lost faith in damp courses as the owner before me had spent thousands putting one in (not sure if it went as far as the kitchen). And we still had problems with damp in our living room.

I'm pretty sure I saw some drill holes in a row in the wall of the kitchen the other day. I can't confirm now as we've covered the walls with a waterproof membrane. But that's what I've always assumed was a chemical DPC.

Anyway, I was hoping that the matting I mentioned in my original post would help to tackle damp issues. Would I be better off putting something else down before self levelling compound?
 

Ajax123

Tilers Forums Pro - Screed Advisor
Trusted Advisor
Professional Tiler
Yes it looks like they are original tiles, it's a Victorian End Terrace house.
Take them up and sell them... my local reclaim yard charges £1 a tile. That should cover the cost of putting in a new polythene DPM and a new screed. You should not level or tile directly over them as there will be damp. As no underfloor DPM is present a liquid DPM is not a sensible option.
 
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Steggy

Active Member
We managed to remove some of the quarry tiles. But very few tiles came up fully intact. Would there be any harm in putting a polythene DPM on top of the tiles rather than the sand underneath them?

What product would you recommend for screed? Just bog standard cement?
 

Adey1980

Trusted Advisor
Professional Tiler
Once you have remedied the damp issues I would recommend porcelain tiles for the floor, you’ll find the b&q ceramic tiles too thin and fragile for use on floors
 
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Steggy

Active Member
Once you have remedied the damp issues I would recommend porcelain tiles for the floor, you’ll find the b&q ceramic tiles too thin and fragile for use on floors
Annoyingly B&Q have stopped doing the tiles we picked out, these are the closest ones they do now.

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Are these likely to be too thin?
 

jcrtiling

Trusted Advisor
Professional Tiler
TTA Member
We managed to remove some of the quarry tiles. But very few tiles came up fully intact. Would there be any harm in putting a polythene DPM on top of the tiles rather than the sand underneath them?

What product would you recommend for screed? Just bog standard cement?
If you put a polythene Dpm down you would have to blind the floor first with sand to make sure you have no sharp edges from damaged tiles and then a minimum of three inches of screed on top of the dpm. I'm no builder so check what I have said .
 

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