i need to tile my bathroon walls but mold is presant and need to know how to prep the walls ready to prevent mould returning. i am adding a extractor fan as well to help.

hi when you say mould

what colour? black? does it wipe away, if so , warm water with bleach will wash off and kill and mould thats formed on the surface.

hi a good wipe with bleach then a good sealergoat ,let it dry for 24hrs then tile away

most paint shops do a mould remover and preventative to stop it from coming back, treat it with these then wash down with clean water and then allow to dry

thi is really good stuff for removing mould, I've used it and it was brilliant

Is there any paint on your walls and is it a vinyl silk

Originally Posted by TT Tiling

hi a good wipe with bleach then a good sealergoat ,let it dry for 24hrs then tile away

Cant have too many sealergoats

Originally Posted by Bolter

Cant have too many sealergoats

this little fella might disagree

Once the mould has gone, tank the shower / bath walls, this will help prevent mould growth in the future

black mould and wipes off but but leaves a stain. what does tank mean?

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

lol ,sorry spelling not my strong point

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

Originally Posted by 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

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