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Welcome to the Bunnings Workshop community @Jessede7. It's terrific to have you join us, and many thanks for your question about tiles.
I apologise for the delay in my reply.
No, pool mosaic tiles don’t strictly need a rendered base. They are typically adhered directly to a prepared concrete surface. However, if the surface is uneven or unsuitable for proper adhesion, rendering might be necessary to create a smooth and stable base. Could you provide more context about your project? Details like the current state of the surface and the materials you’re working with will help our community members provide a more tailored response.
Please let me know if you have any questions.
Mitchell
Ramp entry to pool to be tiled with mosaic
Hi @Jessede7,
It would be best to discuss the specific preparation requirements with the tiler who will be installing them. There's a good chance that the current surface can be tiled over, but that would be up to the installer.
Mitchell
Taking another look at the image @Jessede7, the surface is quite rough and textured. It might be that they are not confident in tiling the area and achieving a quality result over the current surface. In saying that, you could likely find a concretor that could smooth the surface for far less than what has been quoted. I'd suggest getting another quote from another tiler so that you can better understand what is required. If the surface needs to be of a higher quality and smoother, then having that work completed separately might be the best route forward.
Mitchell
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