On 13/10/2017 19:49, Andy Burns wrote:
Rob Morley wrote:

You're supposed to use Aquapanel* (cement-based glass-covered wall board
rather than gypsum-based paper-covered) for showers.

glass-covered?Â* I'd go with cement-based with embedded glass-fibre mesh.

Correct. It is a little bit like old fashioned cement-asbestos board,
but with the asbestos replaced by glass fibre. It also has a somewhat
harder and smoother surface.