ᐅ Granite on concrete outdoors – is a decoupling mat necessary?
Created on: 7 Aug 2013 16:08
C
chosen1Hello everyone,
I’m new here and have a question that I haven’t found an answer to yet.
We are currently building an outdoor kitchen, and we want to install granite tiles there. A friend recently pointed out a potential issue, and I’d like to get your advice on it.
This is what the finished result should look like:
For the base of the countertop, I laid concrete lawn edging stones – as seen here:
Now, I was told that there could be stresses caused by this, and I shouldn’t install the granite tiles (61 x 30.5 x 1 cm (24 x 12 x 0.4 inches)) directly onto the concrete parts. Of course, I would use a proper flexible tile adhesive, but that alone would not be sufficient – I would need at least an uncoupling membrane to prevent cracks in the granite tiles due to tension.
Since this whole installation will be outdoors and exposed to all weather conditions, with temperatures ranging from -20 to +30°C (-4 to 86°F) …
Do I really need to use an uncoupling membrane, or is a good flexible tile adhesive enough?
I’m new here and have a question that I haven’t found an answer to yet.
We are currently building an outdoor kitchen, and we want to install granite tiles there. A friend recently pointed out a potential issue, and I’d like to get your advice on it.
This is what the finished result should look like:
For the base of the countertop, I laid concrete lawn edging stones – as seen here:
Now, I was told that there could be stresses caused by this, and I shouldn’t install the granite tiles (61 x 30.5 x 1 cm (24 x 12 x 0.4 inches)) directly onto the concrete parts. Of course, I would use a proper flexible tile adhesive, but that alone would not be sufficient – I would need at least an uncoupling membrane to prevent cracks in the granite tiles due to tension.
Since this whole installation will be outdoors and exposed to all weather conditions, with temperatures ranging from -20 to +30°C (-4 to 86°F) …
Do I really need to use an uncoupling membrane, or is a good flexible tile adhesive enough?