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| Tanking & Wetrooms Tanking & wetrooms forum. Topics include those related to tanking before tiling, creating and making wet rooms / shower rooms, selecting the correct tanking kit etc. Brands discussed include BAL WP1 tanking kit, Mira tanking kits and wet room solutions. |
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30-06-2008
| #1 | ||||||||||
| New Tiling Forums Contributor 
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I went through the expense of installing (Knauf) moisture resistant plasterboard on all the walls and ceiling of my bathroom and now people say that I should tank it in the shower area. Why the extra expense? This is a shower above a bath, by the way. I am tiling from bath to ceiling and from wall to wall in the shower area. | ||||||||||
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Feel cheated - tanking moisture resistant plasterboard |
30-06-2008
| #2 | ||
| Tilers Forums Admin    Acceleracers Track Mod Champion!Join Date: May 2007 Location: co.durham
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It really depends on how often your shower is used but in most cases a normal electric domestic shower will not need to be tanked but if it is a power shower then i would IMO...if a shower is used a lot then the grout does not dry out and then water ingression happens.....there are a few ways around this..... The moisture resistant plasterboard is simply that ..resistant, not waterproof so if the shower is heavily used then i would use extra protection for the substrate...be it a tanking solution or membrane.....the call is yours after all...... | ||
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04-07-2008
| #3 | ||||||||||
| Tilers Forums Arms Member 
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use six mm wedi board around the bath tape joints (added expense but better safe than sorry. | ||||||||||
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04-07-2008
| #4 | ||||||||||
| Trusted (Elite) Member  
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there is absolutely no benefit to using a substrate board instead of plaster board in a tanking situation other than from a retailers point of view...........Money mad world  Plaster board the walls and tank it properly with an off the roll membrane, less expense more surity............ tiler .. | ||||||||||
| Last edited by wetdec; 05-07-2008 at 11:08 AM. |
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14-07-2008
| #5 | ||||||||||
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Me personaly I would tank it. You will still get moisture through the grout unless its apoxy so a water resistant board is useless. A WP1 system is best to use I find. the problem with water resistant materials is that they are only good for splash really. if you think about it we average about 5 showwers a day these days if you include the kids so that is a lot of water . But thats my thought | ||||||||||
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