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Wedi board v. Aquapanel v. marine ply (Read 36103 times)
georgiak
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Wedi board v. Aquapanel v. marine ply
Jul 10th, 2006, 7:53pm
 
Hello,

You all sound very helpful, I hope you can help a newbie.

I want to create an extra large shower enclosure - sort of like a mini wet room.  Planning to apply some sort of waterproof board to the floor to create the tray and then tile over it and the walls (walls are freshly plastered).

I've got a joiner/tiler coming next week to do it for me, but he's never done a wet room before and needs me to tell him what sort of board to use (yes I know there are specialists who would know how to do this, but can I get them to come within the next 6 months?!).

Wedi board looks pretty good, and it comes in preformed sizes with a fall, which is handy.  However, it's quite expensive I think and I/he will have to drive an hour to a stockist.  Could the same job be done with Aquapanel or marine ply (which I can get from our local Wickes)?  Would you recommend tanking in addition, or are these panels waterproof enough already?

Also the waste pipe is raised above the floorboards (the room is upstairs) so rather than sinking the waste below the boards, we were planning to put battens over the existing wooden floor to raise the tray boarding up over the level of the waste.  Any comments on this - will it be strong and stable enough?

Thanks very much.
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mudster
Re: Wedi board v. Aquapanel v. marine ply
Reply #1 - Jul 10th, 2006, 10:12pm
 
There are preformed systems purpose made for this type of consturction, use them, trust me they are easier to fit, have all the components required and make it easy to produce a water tight substrate.

My first choice would always be this system:-

http://www.wetroom-solutions.co.uk/

If that doesn't float your boat, Wedi also produce a system called Fundo:-

http://www.wedi.co.uk/fundo.htm

The only time I'd use any plywood is for a reinforcement before either of these systems were used.

Tiles don't like things that expand and contract, ply expands and contracts and there are far better products available for the wet areas.

Do not be put off by the prices of these systems, by the time you've bought the materials to construct your own system, bought the drains, bought the tanking system and paid a guy to construct it from scratch it will be no cheaper, probably less accurate and probably more prone to failure.

Don't short cut the most important part of the installation.
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« Last Edit: Jul 10th, 2006, 10:15pm by mudster »  
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georgiak
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Re: Wedi board v. Aquapanel v. marine ply
Reply #2 - Jul 10th, 2006, 10:46pm
 
thanks for your reply.  I've been looking at the wedi website, and the fundo comes in specific sizes which aren't quite right, so something more flexible in terms of finished size would be better for me.  Thanks for the link to CCL, I will investigate it.
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jasonB
Re: Wedi board v. Aquapanel v. marine ply
Reply #3 - Jul 11th, 2006, 1:32pm
 
If you really want to go the route of making it all yourself then I would do the following:

Take up all the old floorboarding

Fit firings to the tops of the joists (tapered strips of wood) these will give the falls to the drain Put noggins under these if they are at right angles to the joists.

Screw 18-25mm ply onto the firings (Wickes is probably WBP not Marine ply)

Then Fix Aquapanel to the ply with flexible tile adhesive and screwed at 200mm cts, Tape & fill all the joints

Apply tanking to walls and floor, something like BAl WP1 will do the job. The word waterproof when used to describe wedi, aquapanel, tile adhesive and grout only means that the product is not damaged by water It will not stop the passage of water so you must tank the area.

What is the construction of your newly plastered walls and what size & type of tile do you intend to use?

Jason
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mudster
Re: Wedi board v. Aquapanel v. marine ply
Reply #4 - Jul 11th, 2006, 2:26pm
 
[quote author=georgiak  link=1152557634/0#2 date=1152568013]thanks for your reply.  I've been looking at the wedi website, and the fundo comes in specific sizes which aren't quite right, so something more flexible in terms of finished size would be better for me.  Thanks for the link to CCL, I will investigate it. [/quote]


You're welcome, the CCL trays come in a variety of shapes and sizes and unlike the Wedi system it's fitted flush with the floorboards so you don't havea 40mm step up.

Sizes shown here:-

http://www.wetroom-solutions.co.uk/lvldec2.htm
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georgiak
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Re: Wedi board v. Aquapanel v. marine ply
Reply #5 - Jul 11th, 2006, 4:03pm
 
Thanks again.

Two of the walls are plaster on brick, the third is plaster on stud.

Fortunately a bloke who specialises in kitchens and bathrooms has rung to say he can now do the job, so I have (feeling very bad about it) dumped the other not so expert bloke.  I will talk the construction through with him tonight.  The problem is, I got the plumbing done ages ago, and the valve pipes are centred on a width of 98 cm (don't ask me why!) which doesn't fit most pre-formed trays.  100cm would do, but most seem to go u to only 90cm.  Also the length is about 140cm.  We might have to solve the problem by centreing the pre-formed tray and then filling in the 5cm gap at either side and at the end somehow.

Is Aquapanel suitable for use on floors?  Can it take the loading?  Also, if you are tanking anyway, do you need to use a waterproof panel?  I want a step into the shower enclosure because I am not planning to tank/tile the remainder of the bathroom floor, so the water needs to be contained somehow.  At this rate I might just go for a bog standard acrylic tray!

Anyway, hopefully I can leave it to my expert man now! Wink
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bstyle
Re: Wedi board v. Aquapanel v. marine ply
Reply #6 - Jul 11th, 2006, 8:18pm
 
[quote author=georgiak  link=1152557634/0#0 date=1152557634]

Also the waste pipe is raised above the floorboards (the room is upstairs) so rather than sinking the waste below the boards, we were planning to put battens over the existing wooden floor to raise the tray boarding up over the level of the waste.  Any comments on this - will it be strong and stable enough?

Thanks very much. [/quote]

I think you are creating a lot of work for yourself just for essentially a raised, tiled shower tray.

Do it properly with the wastes under the floor or get a Shower tray in there.
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sailfishoney
Re: Wedi board v. Aquapanel v. marine ply
Reply #7 - Jul 17th, 2006, 12:25pm
 
I Dry pak all my shower floors.  If you have never installed a shower floor be it that a prefab or dry pak have someone show you like an expert.  You can cause great damage and the shower to fail if its not done percise.
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