Answered 27th aug 2020 like 0 warwickshire flooring tiling.
Tiling onto plasterboard.
Afaik there s a weight limit for tiles directly onto plasterboard 32kg m2 i think which is better than skimmed plasterboard but imo if its anywhere near a wet zone you should use a more suitable cement board like hardibacker board.
Tiling onto plasterboard walls.
Place the level horizontally on this line and scribe a line for the first course of tile.
I m also fairly sure that pva should go nowhere near tiled walls in wet areas.
Plasterboard should be waterproofed with barrierflex or aba superflex before tiling.
Apply a thin layer of mastic or thin set mortar below the horizontal line using a grooved trowel.
If newly installed plasterboard you should be fine to tile directly onto it some people like to have it skimmed prior but i ve seen many trades tile directly onto the board.
The wall has to simply be prepared in order to complete this task properly.
Preparation for tiling onto plasterboard plasterboard should be dry securely fixed and rigid with no protruding fixings with the face to receive decorative finishes exposed.
It should be a minimum 12 5mm thick when fixed to timber framing or battening and fixed in accordance with the manufacturers recommendations.
Tiling onto plasterboard is fine if they are large size tiles you should use a cement based adhesive.