Level floor?

[Shaun77]

Hi, I am tiling my hall, I have plated the floorboards with ply and screwed down every 6 inches and I plan to seal with pva ( as adhesive prep instructs). Having checked the level and it runs out aprox 1/4 of an inch into one corner, should I worry about levelling the ply with a self levelling compound first to allow for the 1/4 inch or just lay tiles as the floor is? And cut the front door to follow the tiles? Any feedback would be greatly appreciated.

Thanks in advance.

 

[Ian]

What adhesive are you using that says to prime with PVA?

 

[The Legend; Phil Hobson RIP]

As Bri PVA is a no no, also ply is not the ideal substrate, a tile backer board would be my choice. You could use a slc prior to backer board, glued and screwed.

 

[Shaun77]

Unibond rapid set, says 1 part PVA 5 Parts water?

 

[Shaun77]

Actually it's says to use on porous surfaces, I have WBP ply down, us that ok without?

 

[Ian]

Got to be honest here Shaun, unibond adhesive is pants and, if its just the rapid set with no flex additive in it, you floor won't last 5 minutes. At least you've asked the questions before the job and not after.

 

[White Room]

If they recommend to prime on ply, then prime but not with pva though....as above

 

[Shaun77]

Thanks Bri, I will look into changing it today, what are your thoughts on the floor level? Do you think I will get away with it or should I use a levelling compound to allow for the quarter inch difference?

 

[bugs183]

The floor level isn't your main problem here Shaun i'm afraid.
You really need to be doing something about tiling direct on to ply wood. No matter what adhesives manufacturers tell you it is not a good idea. Most guys here never tile direct, and if they do they use a 2 part rubber crumb adhesive.
If this is you hall way then the tiling is going to get lots and lots of foot traffic, so it needs to be done right. You need to be tiling onto a uncoupling membrane or a cement board such as marmox.

 

[cm ceramics]

Have to agree with bri, unibond products are mince, went to view a job last month n b n ? Rep advised their non flexible adhesive and grout would do the job n also under measured the amount of tiles required (approx 2 boxes short), told the customer to take them back and get a refund and I'd source the products needed.

I'd agree with the comments never prime with pva.

I use ply to strengthen the substrate but always overlay with a suitable tile backing board

 

[Perry]

Shaun and how thick is your ply ?