Porcelain patio construction

[Help me please!!]

I'm preparing, a raised patio with retaining walls, I've been told to use a concrete/screed base, leaving approx 30mm for a 20mm porcelain tile and adhesive.
I've been told to fit ditra mat, or ditra drain 8 to drain any water that may get under the tiles, to stop water freezing underneath and cracking the tiles.
Any advice for fitting porcelain tiles on a patio in the UK would be greatly appreciated!!!

 

[Albert]

This may be of use
View: https://www.youtube.com/watch?v=MSfPRihvdnY

 

[hmtiling]

the screed will need to have a fall built into it or this could be done with external grade leveller or adhesive but much more expensive.
Ditra drain 4 or 8 are both excellent products and if you want a future proof installation a wise choice. I've used ditra drain on my own patio.
Wait for good weather to have this done. ditra drain can hold water if it gets saturated as the webbing top will hold the water through surface tension and then takes an age to dry.
Lastly, you do not need 20mm tiles if they are being fixed as opposed to being sat on pedestals. Most10mm porcelain tiles are absolutely fine in this scenario as long as they are frost proof.
Good luck and go with a experienced fixer. Unsurprisingly , the more expensive ones tend to be better at it.

 

[Help me please!!]

Hm tiling, thanks for that, one slight thing that puts me off the ditra drain, is, the patio will fall away from the house, which is perfect, but round the side I needed a slight fall towards the house, into an aco drain.
How will the ditra drain get rid of its water if its a solid screed underneath.
Unless I drill some holes throughtthe screed so it can escape if need be.
Quite hard to explain I know.

Totally agree about paying the right money, I've used the guy before, and he did an amazing job on my kitchen floor, with ditra mat, so he knows what he's doing!

 

[hmtiling]

Hm tiling, thanks for that, one slight thing that puts me off the ditra drain, is, the patio will fall away from the house, which is perfect, but round the side I needed a slight fall towards the house, into an aco drain.
How will the ditra drain get rid of its water if its a solid screed underneath.
Unless I drill some holes throughtthe screed so it can escape if need be.
Quite hard to explain I know.

Totally agree about paying the right money, I've used the guy before, and he did an amazing job on my kitchen floor, with ditra mat, so he knows what he's doing!

You could drill weep holes into the side of the aco drains at screed level for the fall towards the house . For covering the exposed edge of ditra drain elsewhere, if not covered by adjoining surface, two tile trims can be used . One used normally and the other covering the membrane. It looks better without though with the tile meeting a flower bed or lawn etc.
Unless going for a dark grout i'd consider epoxy too. A light cement based grout will not stay the same colour outside for long

 

[Lou]

Don't mind me while I bump up some older but good threads. If you can contribute to the thread, go ahead. But if it's nothing for you then don't reply and it'll soon drop off the What's New page etc.
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