Travertine prep

[DS Tiling]

Substrate is 18mm chipboard, tile size is 400x600 travertine, joist spacing is around 400mm. Usually i would oversheet with 18mm wbp or screw and glue 12mm cement boards but height is an issue. Would 12mm wbp be sufficient to use with a rapidset flex or should i use a 2 part. Large format trowel would be used.

Thanks

 

[grumpygrouter]

I assume there is a bit of movement in the floor?

 

[DS Tiling]

Floor feels ok and is only a small area, < 6metres . Do you think with this size of tile that the 12mm wbp would be suficient used with a rapidset flex, just doing like taking risks with travertine as it can vary so much in quality?

Thanks for your input

 

[grumpygrouter]

Have you considered using something like 6mm Hardiebacker or No more Ply if height is an issue? May be the solution if the floor is solid enough!

 

[tubs]

Have you considered using pecilastic, its 0.8mm thick you only need to stick it down using rapid set and a 2-3mm trowel !!

 

[grumpygrouter]

Have you considered using pecilastic, its 0.8mm thick you only need to stick it down using rapid set and a 2-3mm trowel !!

Needs to make sure the floor is solid though!

 

[tubs]

As long as he is happy there is minimal movement !!

 

[DS Tiling]

Unless the joist spacing is low or extra dwangs have been installed then most 18mm chipboard floors will have a slight deflection. I have considered other products such as hardi. Do younot think the 12mm ply will be sufficient?

Thanks

 

[Turkish]

There`s that word again! "DWANGS".....I love it!!:lol:

Turkish

 

[grumpygrouter]

Unless the joist spacing is low or extra dwangs have been installed then most 18mm chipboard floors will have a slight deflection. I have considered other products such as hardi. Do younot think the 12mm ply will be sufficient?

Thanks

See see!!! I wasn't making it up!........you all thought i was taking the mick didn't you!