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!

 

[DHTiling]

He's just copying you grumps...........

 

[EWJ@ATS]

Providing floor is sound consider using a tile backer board. Screw down using correct fixing screws @ 300mm centres. these are only about 10-12mm thick

 

[Gazzer]

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

I think he stole it Grumps, you should have had your trademark on it

 

[DS Tiling]

I know what i would put down if there were no height or price restrictions but the question remains do you think 12mm WBP over 18mm chipboard would be sufficiently rigid for 600x400 travertine.

Dwangs were used to build the ArK!!!!

 

[Gazzer]

I would still use 2 part flexi adhesive .