Marmox Backer Boards for shower enclosure?

[dangertomyself]

Hi,

I'm thinking of using Marmox 20mm backer Boards to do a shower enclosure. Are they any good?

One side would be fixed to a wooden frame and the other two fixed with tile adhesive to a 10mm layer of one-coat plaster over old, uneven bricks (it's a 1000mm tray to go in a 1060mm wide room)

The Marmox site advises to waterproof joins and penetrations with a polyurethane agent, what would be a good (and cheap one)? Their own waterproof tape is pretty expensive...

I was also going to use an MX Versatile strip to make the tray into an upstand. Is that a good idea?

Thanks for any advice you can give me.

 

[diamondtiling]

Re: Marmox Backer Board for shower enclosure?

Welcome to the forums,
Why not use aqua panels? less expensive and easy to install

 

[dangertomyself]

Thanks!

I thought about Aquapanel, but I read you can't dot and dab it.
For the back wall it would be fine as it goes on a wooden frame, but on the sides I only have 30mm between brickwall and shower tray, so I thought this is not enough room to fit the frame and the board, and even if I could perhaps dot and dab and then screw the board to the dabs (I think I read that somewhere in this forum) it wouldn't leave enough room for ventilation behind the Aquapanel...

Is there a way to fit Aquapanel in a 30mm gap? Can you for example overlap the aquapanel over the showertray and then seal the bottom of the panel to the tray with silicone? The plumber suggested that but it doesn't sound so good to me...

And would you need to tank it? How does that work? I've heard you can't tank directly on Aquapanel.

 

[doug boardley]

why not cut some full length strips of 12.5mm plasterboard, dab those onto the wall and dab and screw a full plasterboard onto the strips, this will nicely make up the 30mm

 

[dangertomyself]

thanks Doug that's a very good idea - it might come in handy for whatever board I use.
With Aquapanel I would still be worried that the moisture would go through Aquapanel and disturb the plasterboard onto which it is fixed - is this just being silly? I forgot to mention that the enclosure would be tiled with 50x50mm mosaic tiles, so a lot of grout for the water to seep through.

Price-wise I don't see a huge difference between Aquapanel and Marmox (some, true, but at least I have found a suplier of Marmox who would deliver to the site, something I haven't been able to find for Aquaboard...)

Any feedback on Marmox boards or good, cheap waterproof tape?

 

[Diamond Pool Finishers]

marmox is great but the company marmox for you are not don't use them imo

 

[dangertomyself]

thanks for the tip, I was thinking of using TileFix Direct, but I haven't looked around that much.

Would a 10mm Marmox board be rigid enough to form the wall of the enclosure on a wooden frame? How heavy are they? I would only be able to use 25mm screws on 20mm battens, would that be enough to hold them up?

And is the Mira 4400 tanking any good?

Thanks

 

[wetdec]

Hi

Why not just use plaster board and tank it with a membrane, you have to make sure its water tight anyway. Cement boards are oiver rated iand overpriced directed at the non pro imo

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