Where do I need water stops? (water proofing prior to tiling)
Posted Nov 21, 2023, 7:46 AM UTC
1019
Are you waterproofing your powder room or not? Would be where the bathroom door is then another one where the power room door is
3
Powder room has no door. Yes I will be having it waterproofed.
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Still need to terminate the waterproofing so will have to be in those two locations
3
Just a side note, I would go to bunnings and get some trim to act as ramp - something like this
It'll save a few toes
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I'm pretty sure I'll be able to make the height difference minimal (flooring is 14mm bamboo with underlay).
I will use a transition strip.
Cheers for your advice.
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Make sure to have a fixture priming your floor wastes. The one in the toilet seems like overkill.
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The one in the toilet is preexisting. I simply ran an additional one from that.
The reason for the reno is leaking from the 80s era bathroom, which got under the flooring. Just making sure water always has somewhere to drain.
2
Why do you need any water stop? Our bathroom was renovated last year and we don't have one. Our bathroom floor ended up higher than the hallway due to the screed and tiling.
2†
That angle you see is a water stop. Likely was stuck down and waterproofed in when the room was waterproofed.
17
Thanks for the clarification. When we discussed water stops with our tiler it was for the frameless shower screen and what he showed us sat above the tiles. Good to know that I do have a threshold water stop!
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Water stops stop subsurface water movement outside the wet area.
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Yep, it’s so that if there’s a leak, and water gets under the tiles, the only way it can leave the room is to come up over the ‘water stop’ at the doorway. Which is why it needs to be installed with the waterproofing.
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A bathroom must have a 20mm threshold to prevent water flowing outside.
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The tile stop in the doorway can double as a water stop.
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Happy cake day mate.
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Make sure to have a fixture priming your floor wastes. The one in the toilet seems like overkill.
1
If you look up AS3740-2021. Section 2 should tell you where a water stop shall be installed within the waterproofing in greater detail than the housing provisions and has specific diagrams The door to the WC is probably overkill, same with the green line,generally where a shower is installed we want a water stop either at the door of the shower or at the door of the room. Nb, Not professional advice.
I suspect the reason the OP is asking is because 50% of tilers or 'professionals' respond with "what's a waterstop?"
Good info though, and although the AS3740-2021 is behind a $196 paywall if you google that OP the first non-sponsored result has a link to a scanned PDF ;)