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Walk in shower water stop angles

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  1. #1
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    Default Walk in shower water stop angles

    We are up to screed and waterproof stage for our bathroom, the shower area is in a corner and drops down 50mm so it can be filled with screed to being it back to bathroom floor level, bed in the linear drain and achieve the correct fall. Do we place aluminum right angle water stops inside the drop down area butted up against the edge high enough to protrude 5mm above finished tile?

    It seems weird that you would have a walk in shower but have a piece of metal sticking out of the floor where you walk in??

    Is it correct that the shower screen is to sit on this edge?

    Thankyou for your time!

    Ben

  2. #2
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    screenshot_20210504_014205.jpg

  3. #3
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    Sorry just one extra question..

    Do I even need water stop angles with this type of design?

    With the shower falling down below bathroom floor level is that enough to stop the water?

  4. #4
    Seasoned DIY droog's Avatar
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    What is the rest of the room ?, is there other floor drains ?

    Tank the entire room and put the waterstop at the door.

  5. #5
    Je pense, donc METRIX's Avatar
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    Yes, you do need angles when the floor is stepdown for shower hob, amendments to the standards were made in 2012 to accommodate for this !!!!

    Pages 21 and 22 of the current AS3740-2010/Amdt 1-2012, figure 3.5 (inpart) Typical Stepped Down Shower Construction.
    Requires step down showers to have an angle on the edge of the shower stepdown, the waterproofing is carried to the top of the angle
    Mieux vaut prévenir que guérir

  6. #6
    Seasoned DIY droog's Avatar
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    From the OP the floor will be flush, not a stepped down shower floor. Believe the requirements are different between the two styles.
    https://www.conpro.com.au/wp-content...erproofing.pdf


    Happy to be corrected if this is not the case.

  7. #7
    3K Club Member johnc's Avatar
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    You should use waterstop angle at the shower, even with tanking the floor as you can get leakage that just sits between a waterproofing and tiles and cannot get away properly.

  8. #8
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    the 5mm step down is from the bathroom floor into the shower - the angle doesnt protrude - it is flush with the bathroom floor. just in case that is what you are saying.

    if you can go get a T angle that is 3mm thick from the aluminium supplier. nearly all waterproofers use 1.6mm which is bendy and can be kicked off its adhesion to a tile edge

  9. #9
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    Thankyou all for your input. Makes sense now.

  10. #10
    Je pense, donc METRIX's Avatar
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    Quote Originally Posted by droog View Post
    From the OP the floor will be flush, not a stepped down shower floor. Believe the requirements are different between the two styles.
    https://www.conpro.com.au/wp-content...erproofing.pdf


    Happy to be corrected if this is not the case.
    Every shower recess requires angle and membrane, to isolate it from the rest of the bathroom floor, irrespective if it's flush walk-in shower, stepdown or has a hob.

    Each type of recess has a different technique to install the angle, this is all outlined in the Australian Standards.

    Some installations the angle protrudes above the tiles some sit flush, depends on the type of shower recess.
    Mieux vaut prévenir que guérir

  11. #11
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    If I install the angle on the side of the shower that will have an exposed face as the tile falls away is it ok to only apply waterproof membrane to the base of the water stop and slightly up it's face so that the milled finish is left showing as an edge trim on the side of the shower fall? Or is it better to water proof up and over the entire water stop and then somehow remove what is left showing above tile surface?

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