bathroom floor/first tiling job HELP!

[bluevin123]

Hi all,:happy:
Gonna do my first Tiling job on Saturday for my parents,its a bathroom floor. Quite small, there is 24 300x300mtiles down on floorboards..The reason They want it ripped up is that the grout keeps coming out in flakes etc. Ive tried ripping them up this afternoon,the tiles came up not to bad,but there is a ribbed spongey underlay called HOMELUX, and its glued to the floorboards and is a swine to get up. Has anyone come up against this at all in the past?
So once I have got this up do you think I should lay down some ply,its only a small area,and didnt know if to use flexible adhesive and grout.Any help please.
Vinnie.

 

[simonb43]

Just put ply or backerboard down straight onto floor. Screw the boards down. Don't bother taking the spongey stuff up. Use flexi adhesive and grout for wooden floors.

 

[GazTech]

HOMELUX is the impression of the manufactirers name from the trim embossed in some kind of adhesive lol

 

[Fred]

12mm mim ply on floor boards, screwed every 6 inches...............

 

[Dan]

LOL

 

[faithhealer]

when screwing your ply down use 25mm long screws (if 12mm ply) less risk of hitting pipe work.

 

[DHTiling]

Thickness of sub-floor + thickness of ply gives you the length of screws needed....dave...

 

[lawrenso]

Not that I am an expert - far from it but when I done the bathroom floor in my last house, I used Marine Ply and screwed through the floorboards into the joists were ever possible (make sure you know where the pipes are though!!) - can't remember the cement but that floor never moved an mm from that day forward....

just my amatur throughts

Cheers

Steve

 

[Fekin]

Just into the floorboards is fine, and adding floorboard and ply thickness gives you the exact mm of screw needed, so you don't have to worry about underfloor pipes.