Andrew Coote

Thu 27 Feb 2014 10:10pm

Mark is right - the concrete surface is probably totally unsuitable for tiling onto - it will be ultimately cheaper to remove the old concrete and lay a new base to tile onto. If the cracking is purely from the initial "settling" then a latex leveller could be spread over the top. Incidentally - if laying a new concrete base of 100mm - then allow at least 6 weeks before tiling to allow full drying, curing and settlement of the new concrete.

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Mark Leverton

Thu 27 Feb 2014 04:47pm

Hi Phaedra Is hard to say without seeing the job but if the concrete is cracked and uneven then it will be unsuitable to lay tiles on . You would need to remove the concrete and put a new concrete slab down leaving enough room from finished height to bed your tiles . Depending on ground conditions 4-6 inches should be enough for the new slab. Hope this helps Mark Surrey Hills Landscaping

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