preparing mouldy walls

[Aston]

'tank' means to waterproof the substrate ie wall/floor

 

[TT Tiling]

lol ,sorry spelling not my strong point

 

[muffinman]

right to do it the correct way chop out odl plaster and replaster because the old plaster will have spores and be damp you dont tile full stop on a damp surface one you have replasted prim it with primmer t you can used board adhesive to plaster this is water poof if you going to the job dont cut cornars it will come back and bite you in the butt big time

 

[White Room]

right to do it the correct way chop out odl plaster and replaster because the old plaster will have spores and be damp you dont tile full stop on a damp surface one you have replasted prim it with primmer t you can used board adhesive to plaster this is water poof if you going to the job dont cut cornars it will come back and bite you in the butt big time

Could you expand on this, may have the wrong end of the stick