Will plaster hold tiles

[firapara]

Hi Guys,

Is there a way to check if the plaster will hold tiles?
I have some old plastered wall and not sure whether I need to remove the plaster and install some backer boards before tiling, or the plaster is good enough and will hold the tiles.

Thanks,

 

[AdamCH]

Depends how heavy the tiles are and how well the plaster is stuck to the walls. Old plaster tends to separate from the walls.

 

[longdogs]

Fix a tile in position, leave overnight and then try to remove the next day. If the plaster has had it, it will pull away with the tile.