Fitting Marmox board onto plasterboard?

[mono]

Hi all,

Can I mount Marmox board onto plasterboard, and what method would you advise? I could remove platerboard and mount onto stud but I know the studs aren't suitably spaced meaning adding more timber (every 300mm)

I did this yesterday on a smaller wall after some good advice off this forum, but this wall is much larger and if I can I'd rather just go straight onto the plasterboard. Obviously want to get this right so will rusted if I have to, juts after some opinions or advice.

Thanks.

 

[DHTiling]

What are your reasons for the marmox ?

Is it weight limits or tanking.?

 

[mono]

Hi,

It's for tanking. Haven't selected tiles yet but don't anticipate they'll be anything out of the ordinary.

Already got the board so looking to use it along with the showerlay tray.

 

[DHTiling]

Ok.. just there are other methods..

What thickness of boards did you buy.?

 

[mono]

10mm

 

[DHTiling]

I replied to your PM , was quicker than awaiting your post approval :lol:... mods are asleep .

 

[mono]

Haha, thanks for that. I thought that there was something wrong with the refresh button!!

So, adhesive and screw into the plasterboard/studwork? Will the boards take up any unevenness in the walls without issue if they are fully bedded down? The walls aren't too bad but aren't perfectly flat either.

 

[DHTiling]

You can D&D them but fixings must go through the dabs.. or flatten walls off first..

 

[bugs183]

Hiya Mono.
As Dave says, i dunno what area you are doing, but if it's a shower make sure you'll have enough room for the tiles and the showerscreen to fit.

 

[mono]

Hi Bugs,

Yeah, it's the shower. All good for tiles and screen. Next question is the floor:

I'm using a shower lay former (20mm) but because the floor was not level I had to sink it into the floor and hang off the joists to level up. This has left the showery tray sticking 10mm proud. Can I use the 10mm boards straight onto the chipboard floor, or would I be better with no more ply or similar?

Thanks, great forum this.

 

[bugs183]

Chipboards not ideal for this kind of subfloor, but if your going to do it anyway, then i'd prime, comb adhesive (stick to the same adhesive manufacturer, Bal, Mape, Dunlop, Ardex are all good,with and 8mm trowel, drop the boards on to this then screw boards down with screws and washers whilst still wet.

 

[mono]

Sounds like a plan. I'll need to tape all the joints too yeah? Is the tape 'flexible'. Just figure you're always going to get some movement with timber over time. Thinking of the shower area really.

Thanks for the advice guys. Very much appreciated.

 

[SJPurdy]

yes you do ned to tape the joints. Full instructions are given on the marmox website - download the BBA agreement.
Steve

 

[DHTiling]

Sounds like a plan. I'll need to tape all the joints too yeah? Is the tape 'flexible'. Just figure you're always going to get some movement with timber over time. Thinking of the shower area really.

Thanks for the advice guys. Very much appreciated.

Yes... marmox do 2 type of tapes.. one you apply with adhesive and the other is self adhesive.. PHG wetrooms sell them at good prices.