Kitchn and Bathroom Floor confirmation

[Woody123]

Alrite Lads n Lasses

Going to start my own Kitchen and Bathroom floor over the next few days and was wanting some assurances i'm doing things right here!

Right im using a ceramic tlie and it will be going onto floorboards so i was gonna ply it ova with 12mm ply and prime the ply with acrylic primer. Was gona use 1 part flexi adhesive and flexible grout. Also is it a 10mm u shaped trowell i need for adhesive on floor? Also when plying out the bathroom will i need to take the toilet/sink out or can i just ply up to them? I was gonna leave 2mm expansion gap between ply board for movement but do i need to tape over the joint or something?
Any help or advice would be much appreciated.
p.s this is my first job since doing my traing so hopefully i will have it just about right!
Cheers

 

[GazTech]

Alrite Lads n Lasses

Going to start my own Kitchen and Bathroom floor over the next few days and was wanting some assurances i'm doing things right here!

Right im using a ceramic tlie and it will be going onto floorboards so i was gonna ply it ova with 12mm ply and prime the ply with acrylic primer. Was gona use 1 part flexi adhesive and flexible grout. Also is it a 10mm u shaped trowell i need for adhesive on floor? Also when plying out the bathroom will i need to take the toilet/sink out or can i just ply up to them? I was gonna leave 2mm expansion gap between ply board for movement but do i need to tape over the joint or something?
Any help or advice would be much appreciated.
p.s this is my first job since doing my traing so hopefully i will have it just about right!
Cheers

The minimum ply overlay onto tongue and groove is 15mm,when using single part flexi ( as per manufacturers warranty ) you can however use a 10mm 0r 12mm backerboard......Gaz

 

[grumpygrouter]

......and I would certainly lift out the toilet and sink if you want the job to look better, and make replacing them later feasible.

Grumpy

 

[White Room]

I use the 6mm hardi backer with a bed of flexi adhesive (extra sbr added) and 25mm screws to secure the hardi on floor boards in bathrooms

 

[GazTech]

I use the 6mm hardi backer with a bed of flexi adhesive (extra sbr added) and 25mm screws to secure the hardi on floor boards in bathrooms

6mm backerboard with standard flexi onto floorboards are not guaranteed by adh manufacturers, they state 10mm backerboard minimum.They say that 6mm is not a structural board .....Gaz

 

[White Room]

6mm backerboard with standard flexi onto floorboards are not guaranteed by adh manufacturers, they state 10mm backerboard minimum.They say that 6mm is not a structural board .....Gaz

It was a hardi backer information sheet from a tile shop where I buy my adhesive It said 6mm for floors and I think nomoreply say the same thing, but you make a fair point

 

[Woody123]

whitebeam
if i use this hardibacker board do i need to tape the joints up and stagger the joints? How much is this?

cheers for the info aswell gaz

 

[DHTiling]

You only need to tape the joints if you require the floor to be water tight...i.e wetrooms etc..

 

[Woody123]

cheers dave

 

[White Room]

whitebeam
if i use this hardibacker board do i need to tape the joints up and stagger the joints? How much is this?

cheers for the info aswell gaz

Hi woody, As dave say's tape joints for a wet room but I do it as standard anywhere I use backerboards, And yes stagger boards as you would with plasterboard