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Supple tiling grout?

 
gardener
Posts: 3176
Location: Southern alps, on the French side of the french /italian border 5000ft elevation
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Hi everybody!

Well, just checking if someone has an idea. I would like to put clay pavers over a wooden floor, joists, noggins and osb above.

That moves at least 1/2 inch up and down for the moment, without the osb.

So the grout should stay supple, rubery like if possible. If someone has an idea about a natural finish for doing this, i would be verry glad to hear. Or may be another idea?

Thanks a lot and best regards.

Max.
 
pollinator
Posts: 684
Location: Richmond, Utah
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Hey Max,

I don't think you can tile with that much deflection, but maybe stiffen everything with natural flooring like lime ash flooring, adding pieces of clay tile to the mix for a pozzolan.
 
Posts: 2413
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Hey Max,

I too think this is probably way to much deflection for something as rigid as clay tile. Not being a fan of OSB in general I would probably stiffen the floor with an interlocking jointed wood floor if possible (yes it is more work...but stiffer) and this is pursuming that the frame work can take the added weight.

I have never seen tile suffer well any deflective attachment surface as you just described.

Now, on a positive note to your idea...no guarantees here...I can share a few proprietary concoctions that my mother used and I have experimented with that give good results and may just work with this much deflections...You are going to have to make your own test panels and do a bit of expermenting.

Both of these either used "sawdust" as a "matrix filler" or "cork granules."

http://www.advancecork.com/granules.html

http://www.corkspirit.com/en/arts-and-crafts/natural-cork-grain-cork-powder-45


Formula 1:

part dry lime plaster

casin

egg white

flax oil

The proportions you will have to work out in the sampling but this mixed with the cork granules can create a workable grout.

Formula 2:

Natural latex rubber adhesive mixed with the desired level of cork grout to create the filler/grout and bedding agent.

https://www.google.com/search?q=liquid+rubber+mastic&oq=liquid+rubber+mastic&aqs=chrome..69i57j0l5.5100j0j7&sourceid=chrome&es_sm=122&ie=UTF-8&qscrl=1#qscrl=1&q=natural+rubber+latex+adhesive&revid=1118824083

http://www.chemionics.com/natlatex.html

http://www.usadhesive.com/naturalrubber.aspx

http://www.ifscos.com/products/natural_rubber_latex.html

As a disclaimer, the companies that make some of these latex rubbers are not always the "greenist."

Let me know if I can be of further help...

Regards,

j
 
Posts: 132
Location: Kooskia, ID
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I don't know how permie it is but you can use clear silicon and grout powder. Fill the grout lines with the silicon. Then take and dust the top with the grout powder. Let silicon dry, then sweep/vacuum up all the powder that didn't stick to to silicon. I've done this around thersholds where the tile grout line and therhold meet. I don't know how it would work over an entire floor tho.
 
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