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31-08-2008
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#1 | | New TilersForums Contributor
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|  tiling onto flexible wood floor. Advice please! | |
Hi everyone, just got my 1st job tiling a bathroom. The walls i havent got a problem with, but could use some advice on the floor. The floor has only been boarded in 6mm ply for a start and is causing me concern. The tiles are 300mm x 600mm porcelain. What is th best addy to use for that? Was thinking of using standard spf. Also what would be the best trowel to use for this? Sorry if these questions sound a bit dumb but i thought it best to call on you experienced guys for help!
Cheers,
Dan
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Last edited by wheelbo; 31-08-2008 at 05:16 PM.
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31-08-2008
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#2 | | TilersForums Trusted Member
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| Re: 1st Job tiling onto flexible wood floor. Advice please! | |
As long as the floor is sound, then use a spf but make sure its porcelbond, also use flexible grout, i use a 10mm trowel.  |
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31-08-2008
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#3 | | New TilersForums Contributor
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| Re: 1st Job tiling onto flexible wood floor. Advice please! | |
Is porcelbond the only type you can use for porcelain then? | | |
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31-08-2008
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#4 | | Tilers Forums Arms Member | Re: 1st Job tiling onto flexible wood floor. Advice please! | |
Quote:
Originally Posted by enduro  As long as the floor is sound, then use a spf but make sure its porcelbond, also use flexible grout, i use a 10mm trowel. | 
SPF onto 6mm ply overlay on a wooden floor with flex???
Even if the floor was rigid, which i don't think this one is going by the thread title, SPF should not be used onto a 6mm ply overlay.
BAL FastFlex, 2 part adhesive, should be used on any ply overlay under 18mm.
But only then if the floor is free from any deflection, and the overlay is being used to only smooth the floor.
As for grout, wide joint grout with GT1, 1:1 with water, would be the recommended grout rather than Superflex WJ, or the like | |
Last edited by Droopy; 31-08-2008 at 06:23 PM.
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31-08-2008
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#5 | | Tilers Forums Arms Member | Re: 1st Job tiling onto flexible wood floor. Advice please! | |
Quote:
Originally Posted by wheelbo Is porcelbond the only type you can use for porcelain then? | You must have porcelbond in the adhesive for it to stick to the porcelain.
Standard cement based adhesive when used with ceramic, get absorbed into the ceramic enough for it to hold.
But as porcelain is non-porous, the cement cannot bind to it like it does with ceramic.
That is where the porcelbond comes in. These polymers act basically as a glue, that hold the cement to the porcelain. | | |
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31-08-2008
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#6 | | TilersForums Trusted Member
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| Re: 1st Job tiling onto flexible wood floor. Advice please! | |
don't tile a floor with 6mm ply with any adhesive :Pete | |
Last edited by pjc; 31-08-2008 at 06:23 PM.
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31-08-2008
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#7 | | Tilers Forums Arms Member | Re: 1st Job tiling onto flexible wood floor. Advice please! | |
Quote:
Originally Posted by pjc don't tile a floor with 6mm ply with any adhesive :Pete |
The only time you could, would be if it was a totally rigig T&G floor onto joists at 300mm centres, with noggins also at 300mm centres. And you were using BAL FastFlex.
Then basically the ply is only being used to smooth, rather than strengthen. | | |
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31-08-2008
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#8 | | Healthy TilersForums Contributor
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| Re: 1st Job tiling onto flexible wood floor. Advice please! | |
I'm with James on this one. Most customers are put off when you say to them you have to lay 18mm ply coz of the step up from the adjoining room but it's the only guarantee. If they don't want the step then it's 2 part flexi. Good luck with your 1st job mate |
I feel the need, the need for speed! |
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31-08-2008
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#9 | | Tilers Forums Arms Member
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| Re: 1st Job tiling onto flexible wood floor. Advice please! | |
right guys 6mm ply is ok if floor is solid with no movement , adhesive shoild be webber ripid set with a admix AD250 ,its the same as timeberflex =39 pounds
,ripidset with the ad 250 =27 pounds for a 25 kg bag , I have used it and it is great to work with | | |
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31-08-2008
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#10 | | Tilers Forums Arms Member | Re: 1st Job tiling onto flexible wood floor. Advice please! | |
Quote:
Originally Posted by muffinman right guys 6mm ply is ok if floor is solid with no movement , adhesive shoild be webber ripid set with a admix AD250 ,its the same as timeberflex =39 pounds
,ripidset with the ad 250 =27 pounds for a 25 kg bag , I have used it and it is great to work with | ony if you have the joists at 300 centres with noggins at 300 too.
not many floors like that about, sadly. | | |
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31-08-2008
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#11 | | TilersForums Trusted Member
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| Re: 1st Job tiling onto flexible wood floor. Advice please! | |
no i don't think so when you tile one side of ply it is unequal laminates and 6mm would dlaminate unless you stick it down with adhesive and screw it then tile on top but has to be solid as a rock | | |
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31-08-2008
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#12 | | Tilers Forums Arms Member | Re: 1st Job tiling onto flexible wood floor. Advice please! | |
Quote:
Originally Posted by pjc no i don't think so when you tile one side of ply it is unequal laminates and 6mm would dlaminate unless you stick it down with adhesive and screw it then tile on top but has to be solid as a rock | Yeah, it probably is so thin that you would either need to stick it aswell as screw it. Or screw it every 100mm or so.
Not very practicle, is it?
But, if all that was done, seeing as an unplyed T&G floor (with the correct spaced joists and noggins) is stable enough, then I don't see why that wouldn't be stable enough.
Not much chance of getting all of that in place though.
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