Tiling my house, need some advice

[tek_01]

Hi all, new to the forum so take it easy on me :lol:

Basically im up to the tiling part of my house and what i have done so far is on the 65 sq m of floorboards have secured them all down with screws into the joists and packed any gaps under the house between joists/bearers/piers.
I Have then nailed down some ceramic tile underlay (compressed fibro stuff) in accordance with manufacturers instructions leaving expansion joints at all door ways. So far so good...

Now i went out and bought 600x600 polished porcelain with square edges (no bevel:yikes because of the look and price was in my budget + the wife was nagging me she wanted them so boss wins. Now the floor is far from flat in some areas but it would cost me WAY too much to put down floor leveller so im going to have to try make do with bit thicker/thinner glue in some spots.
I have bought the LASH tile spacers in order to make my life that bit easier. Good choice for a newb? I understand these wont level my floor but will aids in having no lippage.

Also, i have a 100mm step down into my lounge room. What should i do on the edge there? I was originally going to put some caesarstone strip about 150mm along it (3m length) but am now thinking just to bring the tile right to the edge. Any thought? Dont really want to put an angle strip thing there as it would look crummy

Ive got plenty more questions but this will do for now
Thanks

 

[Ian]

Welcome along to TF. What is the product you have used as an underlay? Do you have a brand/product name please.

 

[kendo1]

I reckon there will still be some bounce in the floorboards. You'll be best to put down some ply, 18 -22mm thick, and then some backer board.

If you skimp at this stage you'd be as well throwing the tiles in a skip.

 

[tek_01]

Im from australia so unsure if you guys will know the brands but anyhow ill state what they are

Floor is 19mm hardwood t&g (prob 50 yrs old). The underlay is james hardie Ceramic tile underlay
The glue im using is going to be a 2 part flex, most expensive. Davco Tradeflex is the name. Also going to prime the fibro with Davco Ultraprime.

I Know there is going to be bounce but im past the point of tearing up floor boards (and over budget). Do you reall think i will have problems?

 

[kendo1]

To the third para- yep!
Any bounce and the grout will crack as the tiles move.
If your over budget I suggest that you wait until you can afford to do it correctly. Otherwise you're wasting the money you have already spent.

It all depends on the bounce!

 

[Daz]

Have a chat with Jay, View Profile: jay - tilersforums.com | Tile Forums | Tiling Forum, he'll be able to assist.

Good luck

Daz

 

[White Room]

If you have bounce on the floor, yes you will...

 

[tek_01]

Ok, How much bounce is acceptable? When walking on the floor i havent noticed any bounce but being wooden floors, im sure there is 'some' bounce. Any creaking while walking i have fixed by packing any gaps underneath the joists and also using 100mm batten screws thought joists and bearers.
I could (painstakingly as there is less than 60cm gap) go back under the house and put noggins in between joists but im not sure how this will fix 'up and down' movement? and nailing wont work into this hardwood as the gun shoots them only half way so pre-drilling and screwing is the only way i will get the noggins in.

So basically, how to measure bounce?
Cheers for the replies so far

 

[tek_01]

Sorry dont know how to edit posts so have to double post. But incase there was a misunderstanding, i have screwed down each floor board to every single joist (where the old nails where) so there are no loose floor boards sitting on joists in case thats where you are talking about bounce??

Im taking about the whole floor moving up/down... which can only be fixed (I think) by either more piers or thicker bearers/joists.

 

[White Room]

Fill a glass of water to the brim and walk across the floor and perhaps jump to see if any water leaves the glass, not technical but as a general rule..

 

[tek_01]

Will try that when i get a chance today after work

Is it worth using the LASH tile spacer things? (too late now i ordered them lol)

How about strapping under the house? like metal strap bracing ?

 

[White Room]

Noggins would stop any twist in the timber, straps would better than nothing...if the joists are over 2.5m then they should have had noggins, diagonal pieces of timber or metal pieces that go between the joists...thats over hear anyway the rules could be different in your neck of the woods.

 

[tek_01]

Yes, similar sort of standard, however this house being twice as old as me must have not followed any sort of standards.. really shoddy work

Looks like im going back under the house again =(

 

[jay]

You need to sort out the movement first noggins or wedges under stumps if required .the lash clips may help but they state that with lash clips the floor must be level before use see if you can exchange the clips for some self leveling compound .your adh is not one i would recomend and think you could do better there .how big is the floor

 

[tek_01]

Whats wrong with the tradeflex? i was led to beileve it was the best to use?

timber section is approx 55 sq and back part is slab which is another 30 sq