Those25 Posted Tuesday at 11:39 Share Posted Tuesday at 11:39 I'm in the process of building a raised patio. Am I right in saying that it has to be 150mm below damp course? So the patio won't end up being very high. I've watched some YouTube videos and most people seem to dig a trench around the edge, which I already have roughly marked out and lay concrete foundations and then use engineering bricks for the retaining wall. I'm looking for advise on the measurements of the trench (depth and width) and as I will have to dig this out and mark it out. I already have some ruble in the middle so will break this down for the base next. I plan on using Porcelain tiles to finish and a decorative stone brick to cover the engineer blocks. Any advise will be a great help as it's my first time doing this! Link to comment Share on other sites More sharing options...
Andehh Posted Tuesday at 13:23 Share Posted Tuesday at 13:23 2 bricks ideally. I'd possibly compromise that with an acro drain and render covering above DPC. Not best practise, but personal preference. Link to comment Share on other sites More sharing options...
Russell griffiths Posted Tuesday at 16:18 Share Posted Tuesday at 16:18 You are best of getting rid of all that rubble, that is not a good base for porcelain tiles. scratch all that out You will need a good base of type one for porcelain with a solid mortar bed. get rid of all that rubbish and then you will be able to peg out you heights better. Link to comment Share on other sites More sharing options...
joe90 Posted Tuesday at 16:47 Share Posted Tuesday at 16:47 The 150mm difference is to stop rain slash above the DPC. I reduced mine to one brick to reduce the step as a trip hazard (IMO) . I then treated up to about 500mm above DPC with a water proofing agent. I took a punt but the BCO was a decent guy and accepted my reasoning. I think it could be reduced to nothing to give a flat entrance especially with an atco drain as well. i do have a reputation for breaking/bending/challenging the rules. 🤷♂️ 1 Link to comment Share on other sites More sharing options...
saveasteading Posted Tuesday at 17:27 Share Posted Tuesday at 17:27 Porcelain tiles should be laid on concrete, not rubble. Plus they get very slippy when wet. Agreed with the above...that you need 150mm for splashing OR a perimeter drain. But the drain can simply be gravel. Link to comment Share on other sites More sharing options...
joe90 Posted Tuesday at 17:34 Share Posted Tuesday at 17:34 3 minutes ago, saveasteading said: the drain can simply be gravel. Yes the gravel will reduce splashing as it’s a rough surface but I am not sure an atco will do as well as they are there to drain water away. Link to comment Share on other sites More sharing options...
DownSouth Posted Tuesday at 21:51 Share Posted Tuesday at 21:51 Have you spoken to anyone who has porcelain tiles? They seem to be out with brushes and squeegees constantly to keep them looking clean. Link to comment Share on other sites More sharing options...
kandgmitchell Posted Wednesday at 17:17 Share Posted Wednesday at 17:17 Well we were recommended to porcelain tiles as we were advised a local merchant was clearing out end of season stock and we did get a decent price for all the "black" colour they had left. 6 months on they are laid. When wet they are a deep blue/black with a sort of veining in them and look really good. When dry they're just flat dark grey with muddy cat paw prints backwards and forwards across them....... going to need a brush and squeegee to keep them looking clean I think............ Link to comment Share on other sites More sharing options...
Andehh Posted Wednesday at 21:42 Share Posted Wednesday at 21:42 (edited) We have porcelain tiles, and they don't get slippy.... But I do brush them down after heavy rain to keep them looking good! 😁 In the summer fairy up liquid, and a large broom every few weeks... Because they match the kitchen tiles and we have large sliders... having the same tile inside and our a flush threshold.. looks ace! Just a shame it's also a massive (expletive deleted)ing cold bridge because I took my eye off the build for one minute.... DAMN! Edited Wednesday at 21:42 by Andehh Link to comment Share on other sites More sharing options...
Russdl Posted yesterday at 00:16 Share Posted yesterday at 00:16 We have porcelain tiles on pedestals. The ground underneath is anything but level and the pedestals we’ve used are from 50mm to 300mm high to give us a level patio. No grout required, water pours through the gaps. Jet wash it once a year and it still looks as good as new. As with @Andehh our tiles are the same inside to out. Slippery little bastards with frost on them. 2 1 Link to comment Share on other sites More sharing options...
Tetrarch Posted 6 hours ago Share Posted 6 hours ago Our porcelain tiles are still in the process of being installed. They are not at all slippery when wet, but as we may have been a bit conservative with the fall, the ice is quite treacherous. I can see that they will get dirty easily (even when the building site transfer is gone), but pressure washing little and often is my plan. I have a load of broken slate left over from my roof, the plan is to use that in the French Drain around the building Regards Tet Link to comment Share on other sites More sharing options...
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