Hi guys I'm tiling my bathroom with 1m x 1m x 12mm thickness porcelain tiles on to plaster which has been patched in places where it wasn't solid, old plaster seems solid enough, these tiles are really heavy, I've cleaned the walls of dust and given it a coat of plasterers pva grit, will that be good enough? If not can I put SBR on top of that pva grit or will I have to scrape it off and apply SBR, Also I want to tile on a stud wall out side of the bathroom - these are standard plasterboards, will that plasterboard be strong enough for me to tile on to, timbers are set at 450mm centres, or would you recommend replace with hardy backer boards? Any guidance & advice/tips would be much appreciated Thanks Sam
You'd prob be best to replace the lot with Hardie backer as you'll need a surface capable of carrying all that weight. Standard PB, can carry 32kg/m2 including adhesive and grout...how heavy are your tiles? Also, when you say PVA grit, do you mean blue grit?
They are expensive £42 a tile, I've really struggled to get a tiler, tilers I've got to come and look have turned the work down even though I'll pay them whatever they want, I just need it done, tricky job as there are so many cuts