floor tiling

[jakeyseven]

hello i have a slight problem i have floor boards in my bathroom and need to tile the floor, what is the best way to get over this problem cheers

 

[Richard C]

Either overboard with minimum 12mm WBP ply or replace the floorboards with 18 - 25mm WBP ply; replacing reduces the threshold height.

Read the forum sticky & the many archive posts in this forum as to how to go about it, & come back with any specific questions.

 

[jakeyseven]

Either overboard with minimum 12mm WBP ply or replace the floorboards with 18 - 25mm WBP ply; replacing reduces the threshold height.

Read the forum sticky & the many archive posts in this forum as to how to go about it, & come back with any specific questions.

well i have problem firstly i will be too high with 12 mill as i am governed by hall way carpet threshhold and secondly my floor boards run whole length of house as all my walls are studded upstairs

 

[Richard C]

well i have problem firstly i will be too high with 12 mill as i am governed by hall way carpet threshhold and secondly my floor boards run whole length of house as all my walls are studded upstairs

Don’t be tempted to overboard with thinner ply; the BS recommended minimum is actually 15mm but it’s widely accepted that 12mm is sufficient in most cases; it depends on the floor construction. Some will advise 6mm backer boards screwed & bonded will be adequate but personally I wouldn’t risk it. You can get (or make) a custom door threshold to take account of the height difference & you will, of course, need to trim the bottom of the door but IMO such a height difference never looks good.

It’s the main reason I prefer to take up the original floor & replace it with 18-25mm WBP, depending on the floor construction. It’s not difficult to cut & remove sections of the floor & floor boards (as opposed to chipboard sheets) are one of the easiest. It's a little more work & expense but, if done correctly, will almost certainly guarantee you won't have any problems with tile failure.

 

[jakeyseven]

well i have problem firstly i will be too high with 12 mill as i am governed by hall way carpet threshhold and secondly my floor boards run whole length of house as all my walls are studded upstairs

Don’t be tempted to overboard with thinner ply; the BS recommended minimum is actually 15mm but it’s widely accepted that 12mm is sufficient in most cases; it depends on the floor construction. Some will advise 6mm backer boards screwed & bonded will be adequate but personally I wouldn’t risk it. You can get (or make) a custom door threshold to take account of the height difference & you will, of course, need to trim the bottom of the door but IMO such a height difference never looks good.

It’s the main reason I prefer to take up the original floor & replace it with 18-25mm WBP, depending on the floor construction. It’s not difficult to cut & remove sections of the floor & floor boards (as opposed to chipboard sheets) are one of the easiest. It's a little more work & expense but, if done correctly, will almost certainly guarantee you won't have any problems with tile failure.

cheers mate i have a wooden threshold at the moment which was originaly there it is 12 mil so probably ok . to over board also can i lay this in parts as i need to get the toilet positioned at correct height and on the other side of bathroom i have some pipes to contend with so i dont want to over board that part yet . one more thing can i lay this ply and leave for a while before tiling cheers photos on http://photobucket./daz1968 appreciate your help mate

 

[Richard C]

Always use the largest sheets possible where you can, screws at 150mm through into the joists (after checking where pipes/cables are) rather than just into the top of the floorboards & make sure the floorboards are well fixed down first. The ply should be sealed on the back & edges with an SBR sealer but don’t prime/seal the top unless the tile adhesive manufacturer recommends it; won’t hurt to leave the ply before tiling, just make sure no dust. Use only quality trade flexible adhesive & grout not cheapo DIY stuff. If you’re taking up some of the floorboards for pipes anyway, I would seriously consider replacing rather than over boarding; won’t be much more expensive & will provide a much more rigid tile base.

Can’t seem to get anything out of the link or searching on Pbucket!

 

[lancenotalot]

Some will advise 6mm backer boards screwed & bonded will be adequate but personally I wouldn’t risk it.

I use backers all the time now,have been using them for about three years,plenty of repeat work at the properties as I do many types of work so I know the work is still sound.

If backers are installed correctly they are fine.

 

[tictic]

secure boards to joists,prime boards.
glue and screw a 6mm backerboard,as above,tile floor you should reach your 12mm threshold.

 

[Richard C]

There ya go

 

[jakeyseven]

secure boards to joists,prime boards.
glue and screw a 6mm backerboard,as above,tile floor you should reach your 12mm threshold.

hello mate i dont know if i have done this properly , but hear goes. firstly i have screwed down floor boards to joists, applied 8 mill plywood to floorand screwed down, looks a solid floor but i still here creeking of floor in places and just wondering am i waisting my time and money tiling the floor cheers daz

 

[Richard C]

secure boards to joists,prime boards.
glue and screw a 6mm backerboard,as above,tile floor you should reach your 12mm threshold.

hello mate i dont know if i have done this properly , but hear goes. firstly i have screwed down floor boards to joists, applied 8 mill plywood to floorand screwed down, looks a solid floor but i still here creeking of floor in places and just wondering am i waisting my time and money tiling the floor cheers daz

tictic & I were referring to tile backer boards; http://www.wallsandfloors.co.uk/acc-details.php?aid=122

Don’t be tempted to overboard with thinner ply; the BS recommended minimum is actually 15mm but it’s widely accepted that 12mm is sufficient in most cases; it depends on the floor construction. Some will advise 6mm backer boards screwed & bonded will be adequate but personally I wouldn’t risk it.

If it’s creaking it’s moving & could lead to failure, impossible to judge without seeing it!

 

[tictic]

you dont want any flexing creaking what so ever...8mm wbp ply you say... well weber have an adhesive for 9mm wbp ply..
http://www.netweber.co.uk/tile-fixi...-based-tile-adhesives/weberset-rapid-spf.html

look under benefts and features..

 

[tictic]

in saying all the above this product is "more aimed for the proffesional tile fixers"...mate

 

[tictic]

and the 9mm wbp ply is fitted/fixed to adhesive manufacturers instructions or you will not have a "claim" if there is a failure...

 

[tictic]

and rich
i have used this adhesive.....but......not on overboarded 9mm wbp ply...lol
on 6mm cement based backer boards..