Discuss Porcelain tiles and decoupling membrane? in the Specialist Tiles -Stone, Porcelain, Glass area at TilersForums.com

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Hi all, I would appreciate some professional advice please. I have 10mm porcelain tiles for a garden front path leading to door. The path will be reinforced 120mm concrete.

I am also laying these tiles just inside the door, as this will be part of the same concrete slab, however, the tiles will overlap onto maybe 300mm of 25mm plywood topped with 6mm hardiebacker glued and screwed.

I'd like to know if I can tile direct onto the new concrete slab with a thick bed adhesive, or if I should be using a decoupling membrane first?

Secondly, on the inside, is the membrane a necessity over the 2 different substrates?

Lastly.....which adhesive and grout would be best for this purpose? I prefer using Mapei products, and use Keraflex Maxi a lot, but am unsure of the correct adhesive for exterior use.

I'm confident with my ability to do the job, just need some sound advice on the correct application of products. Your advice is much appreciated as always.

Thanks in advance. Richie.
 
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