Tiling over plasterboard involves adhering tiles to a paper surface and although this will present little problem in dry areas if the wallboard is subjected to moisture it may deteriorate causing failure.
Tiling onto plaster.
Adhesive grout and tile 20kg max weight onto plaster.
Tiling onto plaster backgrounds plaster is a weak material compared to brick and cement.
Also now it s been plastered you will be restricting yourself to a tile with a max weight of about 16 kg m2.
Tile onto the block work.
Adhering the tile tiles attach to a wall through a layer of adhesive.
Never use pva for tiling acrylic primer onto plaster wood sbr onto cementisious substrete just score it well with stanley knife prime and you ready to go.
Tiling over damp plaster causes the wall to fail because the plaster won t become strong if it can t dry out.
Plasterboard is a very common indoor wall surface but is not suitable for tiling without waterproofing.
The dunlop rx range is perfect for fixing small ceramic wall tiles 300mm x 300mm or similar.
Ready mixed adhesives on waterproofing will take longer to dry.
Easy to spread with high grab and great bond strength the rx range makes tiling onto plaster easy priming is only needed if the plaster has a polished shiny appearance.
When applying tile to a plastered surface it is important not to overload the weight of what the plaster will take before failure occurs plaster will support about 20kg m2 or about a 9mm thickness of ceramic tile.
Plaster can take about 20 kg of tiles per 1 meter square answered 3rd dec 2019 like 0.
We have done hundreds of kitchen and bathroom renovations and nearly always replaster walls as they do get damaged removing the old tiles besides which you will achieve a much better finish tiling a straight flat wall.