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Discuss got probs with rising damp! in the UK Tiling Forum area at TilersForums.com.
I need to tile a kitchen floor, whats the best thing to do when you got rising damp from old inch think querry tiles without having to take them up?
:welcome:Good Question!
I would think that we have to tackle the rising damp!
If you try to tile on top of the quarries even with a waterproof coating I wouldn't imagine any adhesive company backing their product.
IMO I would take up the tiles remove any weak or friable subsrates and apply 2 coats of a cementitious waterproofing mortar suitable for concrete or cement renders. ( Weber.cem coat 511). It penetrates into the substrate and crystallises, blocking the passage of water. It is suitable on wet horizontal internal/external surfaces subject to positive/negative water pressure.
More work but that would seem the long term answer!
Timeless John.
The old quarries will not be suitable to tile to even if you use an epoxy DPM...My bet is that they will be but jointed and virtually floating on a sand bed...and will just have no stability to hold new tiles...
I would take them up and install a new screed floor.
:welcome:Good Question!
I would think that we have to tackle the rising damp!
If you try to tile on top of the quarries even with a waterproof coating I wouldn't imagine any adhesive company backing their product.
IMO I would take up the tiles remove any weak or friable subsrates and apply 2 coats of a cementitious waterproofing mortar suitable for concrete or cement renders. ( Weber.cem coat 511). It penetrates into the substrate and crystallises, blocking the passage of water. It is suitable on wet horizontal internal/external surfaces subject to positive/negative water pressure.
More work but that would seem the long term answer!
Timeless John.
Reply to got probs with rising damp! in the UK Tiling Forum area at TilersForums.com