weight limit for tiling on plastered surface

[woody]

Hi everyone,
I am trying to tile my bathroom walls which are newly plastered. I bought some tiles before I realised that a limit of 20 kg/m squared is recommended for tiling on this surface. I have since calculated weight of my tiles including adhesive as 20.3 kg/ m squared. Is this sailing too close to the wind or is there enough safety margin in the recommended limit for me to get away with it? my tiles are 316mm x 452mm, 9mm thick.

 

[DHTiling]

Does that include grout..? if so then personally i thin it is fine..

 

[Ian]

Welcome along, just to clarify, are the walls rendered then plastered or plaster board then plastered?

 

[faithhealer]

you could play it safe and fit backer board to the walls

 

[woody]

thanks all for your input so far
I forgot to include the grout. Now makes it 20.6kg/m squared
Three walls rendered,other wall plasterboard then all plastered.

 

[Ian]

You won't have any issues being 600g over, as Faithhealer said you could always overboard with backer boards.

 

[aph257]

there's always a safety margin in everything, so.......

 

[DHTiling]

thanks all for your input so far
I forgot to include the grout. Now makes it 20.6kg/m squared
Three walls rendered,other wall plasterboard then all plastered.

IMO you will be fine..