ok got all me bits now for a cutter!

[dilz000]

you need more than 6mm ply! BS is 15mm but most on here will say 25mm!!

The mesh tape is just plasters scrim tape.

 

[leec]

BS???? topps do do the 12mm board option for a few quid more is that more like it then 18mm in total?

 

[leec]

ok ive decied its topps tiles for the hardi backer boards ill go for the 12mm boards. i take it ill still have to seal them with primer and the specialst screws, budget out the window!!

 

[Ian]

I think you've got a bit confused mate, the 25mm ply is as a replacement for the floor boards/ chipboard that is already down on your floor. Then the backer board gets glued and screwed to this. If you have a sound floor that is solid (solid bit v. important) then you only need backers. I assume you aren't replacing your floor boards/ chipboard floor?

 

[dilz000]

BS means british standards.

Id go with 25mm ply and 6mm backer.

 

[leec]

no brian not replacing the floor to my knowledge its firm, ive got the plywood now would it hurt if i just use both it was a hassle getting home in my car be a shame to waste it!. yeah ive decied to go for the hardiboard from topps seems the best price i can find

 

[doug boardley]

okay Lee, from the start, rip out existing floor covering, back to the joists! replace with 22or 25mm wbp plywood (sealed on underside and edges), then glue and screw 6mm hardibacker 250 board to the plywood....job sorted

 

[brinkley]

6mm ply dont bother wont really strengthen the floor just adding more layers if you say your floor is solid and you have no deflection ie jump on it and there is no bounce or vibration harde is fine.use a spf over the floorboards lay the boards and screw the boards 200 centres

 

[leec]

have i giving you lot a headache!

 

[Ian]

have i giving you lot a headache!

The big question is 'Do you know what to do now???' We don't want you coming back in 6 months saying your floor is no longer attatched to anything!!!!

 

[leec]

ok its done i found soemwhere cheaper than topps place in yorkshire ive got the no more ply boards x3, no more ply screws, sbr primer, mega adhesive and the scoring knife my heads hurting from all this!! as is probably yours!!

 

[leec]

oh yes ive been doing plenty of reading on it so i should be good................................

 

[leec]

ive been reading up on the no ply webnsite so installing is not a problem once down let the easy work commence :lol:

 

[White Room]

Chances of you getting the delivery before xmas could be slim

 

[leec]

fingers crossed!