1. Do we apply Waterproofing on Tile & Slate Board before tiling. 2. Do we apply Gibstopping over wetline Gib that has to be tiled. 3. Do we apply Waterproofing on wetline Gib before tiling - whether or not Query 2 is done.
zak410,
Feb 27, 10:48pm
1- yes 2-no 3- see link for where to waterproof, but never gib-stop where waterproofing.
Thankyou Zac for your prompt reply. I will ensure the tiler does exactly as you say.
stevo2,
Feb 28, 3:12am
Zac, are you sure on the "Never gib stop where waterproofing? Have never seen a job that has not been gib stopped, although it hasnt been stopped to a high quality. I would have thought that it would need to be at least stopped with paper tape.
stevo2,
Feb 28, 3:51am
Ok found it in the gib book ??? Jointing shall be carried out in accordance with instructions in the GIB® Site Guide ??? Water resistant GIB® AquaMix is recommended for the first two coats ??? No top coat is required
To my knowledge Aquamix have been withdrawn from the market years ago, (or at least not being stoked in Placemakers (winstone) Whangarei for years). Not a surprise either, that stuff used to keep on shrinking for a long time!
If you can find aquamix, use it, but never put gib bedding compound under a waterproof membrane, according to specs.
You got me curious though, when was last time you saw Aquamix being used?
edit # 6 I've seen that, wonder how old the edition is.
zak410,
Feb 28, 4:06am
found that:
"Pleased be advised that the GIB ® AquaMix compounds will be phased out. Some residual stock may still be available for some time. Contact your Winstone Wallboards Area Sales Manager for further detail s on residual stock availability."
Correct, Aquastop is gone re post #5. Now use standard Tradeset instead.
Post #6 is current edition 2014 onwards of the site guide. Page 72 clearly states, "Gib paper reinforcing tape in Tradeset Compound. No topcoats required under impervious lining" " Adhesive fixed ceramic tiles laid over waterproof membrane" As mentioned in earlier post, I have never seen or worked on a job where gib has not been stopped prior to waterproofing
zak410,
May 17, 10:28am
I stand corrected, this is news to me, the rules may have come full circles as that is like it used to be done, before waterproofing era.
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