I'm a bit concerned the floor may move a bit and so the tiles may
break or may not be waterproof.

How do you do this?

Do you need to prepare the wooden floor first i.e. make it perfectly
flat?

In message . com, 405
TD Estate writes
I'm a bit concerned the floor may move a bit and so the tiles may
break or may not be waterproof.

How do you do this?

Do you need to prepare the wooden floor first i.e. make it perfectly
flat?

I recently laid tiles on a bathroom floor where the base was chipboard.
I screwed sheets of marine ply to the chipboard and laid the tiles using
a flexible adhesive (Bal Fastflex). Six months on and its completely
solid... no sign of cracking or movement, touch wood.

--
Paul Giverin

British Jet Engine Website:- www.britjet.co.uk

My photos:- www.pbase.com/vendee

405 TD Estate wrote:
I'm a bit concerned the floor may move a bit and so the tiles may
break or may not be waterproof.

How do you do this?

Do you need to prepare the wooden floor first i.e. make it perfectly
flat?

Not flat, no, but extra stable, and use a thick bed of flexible tile
adhesive.

If its floor BOARDS remove and fit 18mm ply, or simply ply over the top.

If the floor is 'bouncy' you are in trouble. You may need to remove the
floor and beef up the joists, and herringbone them as well.

I was deadd worried about one bathroom, but by the time I had build a
shower wall ad bath enclosure out of ply, screwed to floor and walls..it
wasn't bouncy anymore!

It had a 2" drop at one end as well.I simply screwed and nailed bits of
scrap to fill up the worst, and used odd bits of cement left over from
each mix to fill the hollows.

Its all just fine and you would never guess what is under the tiles :-)

Paul Giverin wrote:
In message . com, 405
TD Estate writes
I'm a bit concerned the floor may move a bit and so the tiles may
break or may not be waterproof.

How do you do this?

Do you need to prepare the wooden floor first i.e. make it perfectly
flat?

I recently laid tiles on a bathroom floor where the base was chipboard.
I screwed sheets of marine ply to the chipboard and laid the tiles using
a flexible adhesive (Bal Fastflex). Six months on and its completely
solid... no sign of cracking or movement, touch wood.

I laid mine straight on the chip. No problems. Its boardds that need
covering frankly.

The secret is stability and a THICK base of flexible cement. 6mm at
least. Oh, and NO LEAKS and NO DODGY GROUT. If water collects under the
tiles on chip, it will swell and crack them off. I did one bathroom with
a temporary layer of thin tiles and thin cement and a loo drip did
exactly that. I stripped the lot off, let the chip dry properly after
fixing the leak, and put it down PROPERLY with tiles up the walls as
well and really grouted the arse off it. No problems now.