Tiling On Concrete Blockwork Outdoors Discussion Thread

Tiling On Concrete Blockwork Outdoors

hi all just been offered a job tiling an outdoor bar ...the bars walls are made from concrete block (not breeze block ) and have only been built for around 3 weeks ...just trying to get a few different opinions on the best way to go about this ..the block work its self is very flat soo thats not an issue ...my first thought was to back it out with some 6 mm wedi then tile straight over the top of that with some flexible adhesive but in order to keep costs down for the customer i was looking at tiling directly onto the block work maybe with a good few coats of primer on it then skim over it with a flat bed of adhesive ...one of the main things im worried about is the fact the block work has been sat out getting rained on for a few weeks and obviously the blocks are going to shrink as they dry back ...so the question is would you tile directly onto the block work or stick with my original plan and back it out with the wedi board ?

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