Bathroom Screeding

This is latest video from the ARDEX How To Tile Series, we screed a bathroom using ARDEX A 36 Abascreed - a premixed sand cement screed.
This product is a factory proportioned premixed sand/cement screed especially designed to achieve falls for water run-off and is trafficable after 24 hours!
ardexaustralia.com/product/ar...
0:00 Intro
0:06 Screeding
0:42 Protect Waste Outlet From Screed Mix
0:55 Mixing and Laying Screed Mix
1:35 Applying Mesh over Screed Mix
1:47 Laying Screed Mix
1:57 Cover Shower Base With Screed
2:10 Check Screed Fall Ratio
2:47 Smooth Screed Mix
3:05 Check Final Level
3:50 Dry Times for Screed
4:00 Cleaning the Screed
4:40 Priming
5:30 Primer Drying Times
5:35 Products featured
5:44 Disclaimer
For more information about this video, please contact our technical services team on 1800 224 070.
For more information about ARDEX Australia, please visit our website: ardexaustralia.com/

[@TheSBoy3]

How do you know what size wood to use as a former for the drain base? Do you go a bit bigger than the drains' actual size to allow for shrinkage of the screed, or is it exactly the same size?

[@vannguyen3251]

Thanks

[@poden3863]

I have a similar bathroom to do. My longest fall from wall to strip drain is 1200mm. My fall should be 10mm of fall. This means there will be 10mm of your stop angle exposed inside the shower at the top of the strip drain , how do you finish the edge between tile and stop angle ? Silicon or grout? In your case it should be about 6mm fall.

[@ardexaustralia]

Good question @podden3863 - The minimum thickness of a bonded screed is 15mm. This means the height of the screed at 1.2m will be 30mm to achieve the 1/80 falls for shower areas. ARDEX do not sell the stop angles.

[@conp2471]

Nice video, how would you finish the waterproofing above the screed into the drain ?

[@ardexaustralia]

Thanks for your question! What additional info do you need other than the finish shown over the drain in the video? Happy to help!

[@conp2471]

@@ardexaustralia If you were to screed above the waterproofing and then waterproof again would you have to use another puddle flange? Trying to avoid creating a wet sandwich type situation if the 1st membrane fails

[@hungnguyenquoc9487]

@conp I used a puddle flange from bunnings. Waterproof the tile underlay and the puddle flange. I then use a piddle flange adaptor (also sold by bunnings) and screed around it. This adaptor acts as a second puddle flange. I then incorporate the waterproofing into that adaptor.

[@IB6-UB9]

What is the slurry made of? Just a very wet screed?

[@ravinvijayakumare]

How do yo mix the slurry?

[@ardexaustralia]

Good question @ravinvijayakumare - Bonded screeds are generally applied with a bonding slurry coat consisting of a liquid polymer additive (e.g. acrylic or SBR - rubber latex such as ARDEX Abalastic or WPM405) mixed with cement. The bonding slurry is broomed thoroughly over the dry membrane and the mixed wet screed mortar applied over the still wet bonding slurry. The liquid polymer additive is also diluted with water and mixed into the screed mortar.

[@KizWhalifa.]

You didn’t even explain how to square the waste heights of the pads or anything educational, you essentially just filmed yourself working