waterproof floorboards before tiling

bgatty68 · Post by **bgatty68** » Tue Oct 13, 2009 8:57 pm

I am tiling bathroom floor, at the moment have new boards down and wondered if i can tile straight onto them or do i need to treat them with anything first (no funny answers on that)

amarg · Post by **amarg** » Tue Oct 13, 2009 9:34 pm

you can normally tile straight onto boards as long as they are secure and the correct adhesive is used.

tictic · Post by **tictic** » Fri Oct 16, 2009 4:12 pm

might be a bit late ere
but i would overboard with backerboards 6mm before any tiling or u could overboard with either 12mm/18mm wbp ply.

what tiles are u planning on fixing to floor.

again sorry if this is a bit late.

thescruff · Post by **thescruff** » Fri Oct 16, 2009 4:32 pm

You just said you don't like tiling on wpb ply.

lamntile · Post by **lamntile** » Fri Oct 16, 2009 5:17 pm

thescruff wrote:You just said you don't like tiling on wpb ply.

Ply on the floor is fine infact its perfect for floors as it stops any movement due to its construction.

Its use on the floor is totally diff to the way you suggested using it on the walls

hell given the construction of modern houses and internal walls you would have to replace all the walls in some rooms on your suggestion of using ply.

tictic · Post by **tictic** » Fri Oct 16, 2009 6:08 pm

thescruff wrote:You just said you don't like tiling on wpb ply.

if u read it again mate its does say "i would" and also says "u could"..

tictic · Post by **tictic** » Fri Oct 16, 2009 6:11 pm

walls an floors are differant substrates...would u not say???

thescruff · Post by **thescruff** » Fri Oct 16, 2009 6:49 pm

Ply is ply, it gives strength to whatever you tile, whether it's on the wall or the floor.

If I build a shower cubical and ply the walls it 100x stronger than plasterboard, and invariably it's spec't by the architect anyway

tictic · Post by **tictic** » Fri Oct 16, 2009 8:27 pm

only thing i would worry about with ply on the walls is its going to expand and contract a lot more than p/board.

tictic · Post by **tictic** » Fri Oct 16, 2009 11:54 pm

thescruff wrote:Ply is ply, it gives strength to whatever you tile, whether it's on the wall or the floor.

If I build a shower cubical and ply the walls it 100x stronger than plasterboard, and invariably it's spec't by the architect anyway

so if u build the above...u always use ply??
do u tank it?
what with?
do the manufacturers of the tanking kit/adeshive cover this?
grout as well what do you use ?...epoxy?

sorry for late reply wife got her "daft"pals in the night..

tictic · Post by **tictic** » Sat Oct 17, 2009 12:16 am

all i can say THESCRUFF is tell ur architect to come join us in the 21st centuary mate....hic...hic..

bgatty68 · Post by **bgatty68** » Mon Oct 19, 2009 12:20 pm

tictic
just planning to put down 30cm x 30cm ceramic tiles

does this make a difference as i have now put off doing the floor until i got an answer so you and the scruff have left me unsure at the moment

thescruff · Post by **thescruff** » Mon Oct 19, 2009 2:26 pm

He's the expert, I think

I'm just saying what I would do.

tictic · Post by **tictic** » Mon Oct 19, 2009 5:23 pm

hi bgatty
ok i would prime ur floor first with bal sbr.
then thinset rapidset FLEX addy on the floor..6mm notched trowel.
lay 6mm backerboards, screw then down as well 12mm backer screws,
lay them staggered with 2/3mm gap between them.
then before tile fixing put a fiba tape over gaps an smooth over with rapidset flex addy
then tile away.imo halfmoon notched trowel.
for grout bal superwide joint flex.
u will be able to purchase all of the above from a good tile retail shop mate.
u could also use spf addy but u will have to wait longer before grouting.
before all of above lay ur b/boards dry so u can get them cut to size.
best of

tictic · Post by **tictic** » Mon Oct 19, 2009 5:32 pm

thescruff wrote:He's the expert, I think

I'm just saying what I would do.