Do I tank aqua panels or Hardie boards.

[Craftycocknet]

Hi all. New to the forum. Hello everyone.

I've a studded wall in a walk in wetroom to tile. it's a nursing home, high humidity and high use. The wall has the shower itself on it. Everything else in the room is complete. I'm doing the studding at 400 centres for the uprights. I'm going to put the horizontal noggins in where needed. It's about 1400 wide. 1700 high. It has 2 thin reveals.

Anyway, I was thinking of a water board. I've got jewsons Travis and CTD at my disposal!! Recommendations, Hardie marmox aqua panel ?? Suppose cheapest really.

Should they be primed? And Damp proofed or is that an overkill?

Any particular screws? Any particular adhesive. Cement based?

Thanks for reading.
Crafty

 

[White Room]

Price wise I'd be going to CTD personally....

 

[Chalker]

Cement boards will need tanking. Insulation boards, just the joints and screws.

 

[One Day]

Please don't take this the wrong way, but I get the impression you don't fully know how to tackle this.
A commercial wet-area like this is going to stay wet. You've got to treat it like a wet room if you want it to last.
"Cheapest"? Not a good way to start!
Forget the builders merchants and use CTD.

DO NOT USE CEMENT BOARDS IN A WET AREA.

Forget anything other than Wedi board / Schluter Kerdi board or if you really are tight on funds - Jacko board.
All available from CTD.
Fix them using the washers (from CTD) and follow the manufacturer's instructions for sealing and taping joints, fastener heads, and internal corners.
You need to be able to use the shower with no tiles. If you can't - it's not prepared correctly.

 

[MTiler]

Jackonboard which is similar to Wedi but cheaper, dont think its available in as many thicknesses though.

 

[Craftycocknet]

Thanks guys. Great advice.

So it's a no-no for the Hardie and knauf aqua panels from Travis...?

What kind of prices we talking for the boards from ctd and screws washers etc?

Ta

 

[One Day]

Can't discuss prices in the open forum but with a trade account at ctd you should get 30-35% off retail.

 

[One Day]

Jackonboard which is similar to Wedi but cheaper, dont think its available in as many thicknesses though.

It's cheaper but nowhere near as good!
I've had two lots where the cement coating softened when wet and allowed the mesh to peel off.

 

[Craftycocknet]

What about knauf aqua boards. Just did a search on here and quite a few people like them. Are they good alternative to wedi..?

 

[One Day]

What about knauf aqua boards. Just did a search on here and quite a few people like them. Are they good alternative to wedi..?

No! They are cement-based. Not waterproof - only water resistane i.e. won't break down.
Like aquapanel / hardibacker and ALL other cement board - they allow water to soak through and into the studs.
Complete waste of time in my opinion.
Heavy, hard to cut and not waterproof - what's to like?!

 

[Craftycocknet]

So would tanking them make them waterproof. ?

I'm just weighing up my options.

Thanks.

 

[White Room]

So would tanking them make them waterproof. ?

I'm just weighing up my options.

Thanks.

Yes, tanking would make the surface waterproof.

 

[Time's Ran Out]

Jackonboard is on special at Ctd.

 

[One Day]

So would tanking them make them waterproof. ?

I'm just weighing up my options.

Thanks.

Once and for all (hopefully!) CEMENT BOARDS - http://www.tilersforums.com/threads/once-and-for-all-hopefully-cement-boards.82141/

 

[MTiler]

It's cheaper but nowhere near as good!
I've had two lots where the cement coating softened when wet and allowed the mesh to peel off.

Its a cheaper option, and you get what you pay for. The coating isnt as strong as Wedi I agree. Their jointing tape and adhesive silicone is great though.

 

[Craftycocknet]

Thanks, it raises some good points.

How would using the cement board damage the tiling if water was for some toreason get through.?

So if you tanked it, other than not being able to take as much weight and the cutting and being a heavier product etc, there would no other other disadvantages to using it? For the future strength of the tiled wall I mean.

Thanks

 

[Craftycocknet]

Just pricing up at ctd. What do I need to seal the screw holes?

Thanks

 

[Craftycocknet]

Ok. Thanks I'm going with Jacko boards. Cheaper than hardie lol a fraction of wedi cost plus wedi got order them in.

Do I need a product to seal the screws and also what screws do I need. Is galvanised?

Thanks for all your help. I will post pictures lol

 

[One Day]

Get some of their 'board adhesive' it's a tube of white polymeric adhesive. You can seal fastener heads by smudging a blob over them. The really correct way is to tape the joints so a roll of jointing tape should suffice. You can bond that too with the tube adhesive. Just be careful to achieve a good bond. Small disposable notch trowel is ideal for this.
Screws, i just use standard screws. And galv washers.

Cement boards have damaged tile installations by allowing water to damage the studs and floor boards, twisting and shifting the boards which damages the tiling. Same could happen with other boards IF they aren't installed correctly!

 

[Craftycocknet]

Thanks

I'm getting their washers and the tap and the tube.

 

[Chalker]

Just pricing up at ctd. What do I need to seal the screw holes?

Thanks

I take it you mean insulation board? While you are in CTD, get some ardex wp. Mix a small amount at a time and go over the washers/screws, with a filler knife, plasterers float or even an old paint brush.
Don't forget the joins in the boards and floor to wall joins will need taping and tanking.

 

[One Day]

I take it you mean insulation board? While you are in CTD, get some ardex wp. Mix a small amount at a time and go over the washers/screws, with a filler knife, plasterers float or even an old paint brush.
Don't forget the joins in the boards and floor to wall joins will need taping and tanking.

This: Jackoboard Board-Fix Kleb- und Dichtstoff 290 ml - http://www.hornbach.de/shop/Jackoboard-Board-Fix-Kleb-und-Dichtstoff-290-ml/8197823/artikel.html
Is WAY easier. But ardex wp would do a great job too.