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DIY Guide To Installing a Wetroom.

Discuss DIY Guide To Installing a Wetroom. at UK Plumbers Forums; Hi all. We frequently get customers who are worried about having a wetroom because of problems like this: - This was caused by a wetroom that was installed incorrectly. If ...
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    Default DIY Guide To Installing a Wetroom.

    Hi all. We frequently get customers who are worried about having a wetroom because of problems like this: -

    DIY Guide To Installing a Wetroom.-20131021_130234.jpg

    This was caused by a wetroom that was installed incorrectly. If you want a wetroom but aren't sure whether you want to get a tradesperson in to do it, here's a guide to the installation procedure. If after reading it, you decide you might want to get a local tradesman in - look at our website if you live close to Lincoln!
    Keiran, Lincoln Plumber & Electrician - www.dripbusters.co.uk.
    Quality plumbing and electrical solutions at competitive prices. All work backed by our comprehensive 2-year warranty.
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    Default Re: DIY Guide To Installing a Wetroom.

    it is a wet room, cant deny that
    GSR? Want gas safety or boiler repair advice? We will check out that you're genuine via the gas safe website, so please dont be offended when we ask for your details. DIYers, odd job people and have a go heroes need not apply.

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    Default Re: DIY Guide To Installing a Wetroom.

    Firstly, these projects usually start by stripping the existing bathroom out. If the floor isn't completely level the joists need to be levelled in order to easily get the correct sloped when tiling the floor (this guide assumed you will be tiling the floor). There are several methods to level a floor. Perhaps the simplest method is to shim the joists either with bits of timber or with hard plastic shims. Shims used to make door frames level/plumb are very strong and can be safely used to shim joists to get them level. One shim should be placed where each screw will go through the floor into the joists.

    We also screw the shims down to the joists to stop them moving when the floor is put down.

    Check all shims are level in all directions before laying the floor.

    On a concrete floor, you will have to level the floor in other ways if it is not level. Either re-screed it or use a self levelling compound before continuing.

    A level sub-floor is essential to ensure that the small amount of water that goes through the grout onto the waterproofing sits there till it evaporates. You don't want it running out the door!

    Our installation here is on a suspended floor, so we have used an Impey Aquadec wetroom tray. For some reason, WBP Plywood comes in 18mm and 24mm thicknesses for flooring. Most wetroom trays are 21mm. By using shims on the joists you can easily adjust the flooring to get it all level.

    Once you've done all this work and cut the new floor, it should look something like this: -

    DIY Guide To Installing a Wetroom.-20131023_110634.jpg

    Jump about on the new floor. Walk around and check for creaks. Any creaking means the floor is not stable. Check you have screwed and supported the floor properly before continuing. Creaking now = tiles moving later = very bad!
    Last edited by cr0ft; 28-10-2013 at 10:39 PM.
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    Default Re: DIY Guide To Installing a Wetroom.

    Next, the walls need to be sorted. The whole room is going to be completely waterproofed with a tanking system soon, so really you can use whatever you want on the walls. We tend to use moisture resistant plasterboard on the walls. It's pretty cheap and a good strong base to tile on.

    Cutting plasterboard to fit the walls is pretty easy. You can score it on the front side with a stanley knife then break it by putting your knee into the back of the score. Finally, just cut it with the stanley knife down the back.

    Fix to the wall with plasterboard screws.

    The finished result looks something like this: -

    Attachment 15513
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    Default Re: DIY Guide To Installing a Wetroom.

    Now it's time to waterproof (tank) the whole room. This is probably the most important part of the wetroom installation. If this is done incorrectly the room will quickly fall apart. There are various ways to lay the tanking matting correctly though.

    We lay the floor matting first. All of the matting is fixed using a cement based tile adhesive. One 20kg bag normally fixes a 5m roll of matting.

    We make sure the floor matting goes 10cm up the walls on all sides. All rolls of matting should also overlap each other by 10cm too. All overlaps are sealed with tile adhesive. Overlaps on walls should be done such that the lower roll of matting is tucked underneath the upper roll.

    Any gaps around pipes are filled with a GOOD quality silicon sealant. Cheap stuff comes loose with time.

    Here's what it should look like when you are done: -

    Attachment 15514
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    Default Re: DIY Guide To Installing a Wetroom.

    Now the time-consuming bit. We're ready to tile. Spend a good bit of time planning out where each tile is going to sit to ensure there are no small cuts anywhere. Are the walls completely flat? Just because you've fitted new plasterboard to existing studwork doesn't mean they will be of course. The walls will only be as flat as the studwork behind. Are there any shaver sockets or fan vents to cut round? If so, try to make sure there's at least one grout line running across them. It will make cutting tiles round them much, much easier.

    You need to make sure you bring tiles out from the wall with tile adhesive as required to make sure the finished tiled wall is completely flat, level and plumb.

    There are lots of ways to tile. We find the quickest way is to set out the first row of tiles all the way around the room. A laser level is a brilliant investment here if you will be doing more than one room. The same door-frame shims you bought for levelling the floor are fantastic for making sure the first row of tiles is exactly level.

    Once the first row is perfectly level, all the other ones above should be, if you are using decent tiles and spacers that is! From here, just tile up the walls, constantly checking the level with your spirit level or laser level.

    These spacers are fantastic too by the way. The only spacers I have used that are exactly the same thickness from one to the other. I have tried Rubi spacers, Topps Tiles one, the lot. If anyone wants to know where to get hold of them, drop me a PM.

    Here's how things should look when you start tiling the room.

    Attachment 15515
    Last edited by cr0ft; 28-10-2013 at 11:15 PM.
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    Default Re: DIY Guide To Installing a Wetroom.

    I'm finishing tiling this at the moment so expect the next installment in a couple of days!
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    Default Re: DIY Guide To Installing a Wetroom.

    Quote Originally Posted by lame plumber View Post
    it is a wet room, cant deny that
    lol
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    Default Re: DIY Guide To Installing a Wetroom.

    The whole wet room thing in this country just does not work in my opinion !
    Timber of any kind is on the move all the time and the rubbish we now have supplied just beggars belief ?
    I used to put in a fair few laundry rooms and they are all tanked out with asphaltic before and work starts .
    You really need a concrete or brick construction to be totally sure I believe although we started using Knauf Aqua panel over 20 years ago when it was special order and the merchants thought you were mad not using plasterboard or ply in showers !
    Always ordered stone trays with upstands too as back then the number 1 reason for call backs on new housing was listed as leaking showers !
    So many wonderful very technical looking wonder materials on the market these days but start working on a 300 year old house that you can hear creaking as the weather changes you need to think again ?
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    Default Re: DIY Guide To Installing a Wetroom.

    As in my post above, I wouldn't continue past the floor stage if I could hear it creaking when I jump about on it. I wouldn't recommend anyone does to be honest. I thinks we both agree that movement in the building is a killer for any room, a wetroom, shower room or even the seal around a bath. This is the #1 cause of showers failing in new builds, the first floors just aren't strong enough to stop a shower tray flexing. Upstands are just hiding the root problem though imo. I had to rip both of our shower trays out in our new build we bought and ended up sitting the trays on the floor instead of on riser kits as the builder did. Only then did they stop leaking. This was after 6 months of the builder sending in 'plumbers' to try and fix the issue.

    I would certainly agree with you regarding a 300 year old house but to be honest 300 year old houses are very much in the minority of houses in this country. For most houses built in the last 60 years or so a wetroom is a very sensible option for persons whose mobility is starting to go. In fact, when you can't really get into a bath any more or step up to get into a shower, they quickly become the best option. I've yet to find a suspended wooden floor I can't get to stop squeaking, even if it needs cross-bracing between the joists to strengthen it first.

    Never had a callback to a leaking wetroom yet that we've fitted this way to be honest.

    Do agree with you that a concrete floor is best though!
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    Default Re: DIY Guide To Installing a Wetroom.

    I've whacked a short version on the tile forum and have linked back to here. I've also stuck your contact details in the thread over at tilersforums too.
    DIY Guide to Installing a Wetroom - Tanking & Wetrooms | Tilers Forums

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