tiling on tarmac


Postby Mo » Thu May 10, 2007 7:52 pm

i have an old tarmac patio about 50m2. is it possible to tile on top of the tarmac. ideally without having to concrete over it.

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Postby thedoctor » Sat May 12, 2007 9:43 am

Presuming you mean paving slabs Mo, yes its usually ok. The slabs should be laid on a bed of sharp sand and cement approx 50mm thick and mixed at 8 to 1. The mix should be damp but not wet which will allow it to dry fairly flxibly and take up any movement in the driveway below caused by varying temperatures,
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