Should I Tank Rendered Brick Walls in Shower Area?

[joeelliot]

Hi,

I am installing a shower/wet room in an upstairs on suite. Shower tray will be installed and three walls tiled to form the shower area. All the walls are rendered/plastered brick. The floor is hardwood boarded with a 6mm OSB overlay. Do I need to tank the walls and floor with it being a shower tray and brick walls? If so, would a a slurry on the walls and floor with taped corners to the wooden floor be acceptable?

Any help would be great, struggling to find any advice on whether or not to tank brick wet room walls.

Joe

 

[Tile Marble Granite]

Send some pictures if you can. That would be helpful!