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Deleted member 9966
tanking is a waterproofing system that acts as a barrier between the tile adhesive and the wall substrate. it works to reduce the impact of water ingression through the tiles, adhesive and grout. it's very cost effective when you think of how much a full re-fit could cost if tanking hadn't been used.
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dock
From the BS tiling and grout even if epoxy grout is used cannot be guaranteed to provide a water tight finish. When...........not if...........water gets through.........well safe to say for the sake of a few quid extra its better that the background is protected even if the shower has time to mostly dry out in between periods of use especially if its above ground floor.
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obobsmith
As above mate tank the area as you would not beleive the damage to the underlying structure that water will cause over a period of time. Plasterboard and any wooden structures will turn to mush, damp through to adjoining rooms etc.
Do it right first time, tanking is not that expensive, redoing your work will be.
Do it right first time, tanking is not that expensive, redoing your work will be.
i know what tanking is and what its for but if the job is off sound construction and the tiling and grouting is done properly and the shower is mastic on all corners and the shower tray there is your waterproof surely thats why you do the tiling to stop the walls behined getting wet and to look nice :lol:
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Deleted member 9966
grout is not waterproof, adhesive is not waterproof and tiles are not waterproof, so that is why tanking is recommended.
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obobsmith
Well said, please listen to the advice you are getting I have recently completed two jobs where the previous installation had not been tanked, one of which had severe structural damage to wooden beams , ie. I could literally push my finger into the beam it was so rotten.
why use them in a shower or all wet areas that is the worst advise i have ever heard im 40 and have been tiling from 18 man and boy some advice on here just doesn't fit im sure bal & mapie & ardex would like to hear their products are not water proof
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obobsmith
Im quite sure Mapei or any of the other manufacturers will confirm that their addys and grouts are not waterproof. Their is a significant difference between waterproof and water resistant.
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Deleted member 9966
deno, dock is a mapei employee and not at any point does he claim that mapei products are waterproof. in fact, from dock's post above, he confirms that even epoxy grout isn't water tight.
I speak from experience about the need for tanking. My en-suite shower room leaked like a sieve through the tubbed addy and cheap tiles. thankfully my lounge ceiling was able to dry out and not much of it needed repairing.
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