Tiling onto chip board

[deborah]

Is there any product that would allow me to fix tiles onto a chip board bathroom floor.As I didn't want to create to much of a step by adding ply.PS the floor is even,with know movement.Deborah.

[royaloakcarpentry]

Unless all joints are glued and you have joists every 300mm then I wouldn't tile directly onto it, if it was my house. If it was someone elses house then I would overlay Ditra matting over it and then tile to be on the safe side.

You can tile straight onto chipboard flooring and never have a problem, we have done so. However it is best to be on the side of caution and negate any chance of problems.

-- Sat May 01, 2010 11:03 pm --

Sorry, should have added that is why I mentioned the Ditra matting to negate any problems that could arise. You still need to use a flexible bagged adhesive and also flexible grout.

The main problem on wooden floors is movement due to the joists flexing. This is why you use a flexible addy and grout.

[deborah]

Thank's for that.I appreciate you taking the time to post.Good imfo.

[Rookery]

Chipboard is not the best substrate to tile onto. I would use Hardie or No More Ply tile backerboard as they are only 6mm thick. You could use Mapei Keraquick and latex additive instead but whichever method you choose, make sure the chipboard is screwfixed at 300 c/s before you do anything. An anti-fracture membrane such as Ditra is a good belt n braces addition if you are tiling with weak stone such as marble, limestone or travertine.

[deborah]

Chipboard is not the best substrate to tile onto. I would use Hardie or No More Ply tile backerboard as they are only 6mm thick. You could use Mapei Keraquick and latex additive instead but whichever method you choose, make sure the chipboard is screwfixed at 300 c/s before you do anything. An anti-fracture membrane such as Ditra is a good belt n braces addition if you are tiling with weak stone such as marble, limestone or travertine.

I called in at the tile shop to choose the wall and floor tiles for my bathroom.They showed me an adhesive that states you can apply directly on to chip board flooring,provided it is ridged.I also saw a leaflet on the no more ply,which as you say is only 6mill thick.Which would give me a raised height of 28mill,which would be OK.Although I am a bit worried about having to put screws in the floor were there are pipes beneath.would it be possible to fix with screws that would not protrude through the bottom of the floor.Say 20ill screws,or would they need to be longer.Were ever I have visited today have given me different advice,but I get get the feeling they are telling me what I want to hear,in order to get me to part with my money. Please any imfo or advise you have will be gladly received.
Many Thank's Deborah.

[Rookery]

Unless the sheets are secret nailed, look for the nail heads in the chipboard which will show you the joists runs. Or take one up. Once you have secured the chipboard with screws, sweep the chipboard and wipe clean. Then fix the No More Ply with the NMP megastrength adhesive and 20mm screws as per the instructions and tile. You can get 'tile on wood' adhesive from several manufacturers such as BAL Fastflex (powder & liquid). It is quite expensive. My preference would be for Mapei Keraquick + their latex liquid. You might get away without overboarding but I cant tell without seeing the floor. What tiles are you fixing?

[deborah]

Unless the sheets are secret nailed, look for the nail heads in the chipboard which will show you the joists runs. Or take one up. Once you have secured the chipboard with screws, sweep the chipboard and wipe clean. Then fix the No More Ply with the NMP megastrength adhesive and 20mm screws as per the instructions and tile. You can get 'tile on wood' adhesive from several manufacturers such as BAL Fastflex (powder & liquid). It is quite expensive. My preference would be for Mapei Keraquick + their latex liquid. You might get away without overboarding but I cant tell without seeing the floor. What tiles are you fixing?

They are quarts mirror fleck. the area is only 4 sq mtrs.there are two areas that are marked for pipes that run across the joists.So I will be unable to use screws to fix in these areas.

[Rookery]

Put as many screws in as you can. Make sure you grout with a flexible grout and leave a movement joint around the perimeter which is filled with silicone sealant.