Do I have to prime or tank 15mm cement board

Tiling questions and answers in here please

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James11
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Do I have to prime or tank 15mm cement board

Post by James11 » Thu Mar 14, 2019 7:39 pm

Iv just found out with help from a couple of members on the plumbers forum that the walls in my bathroom are actually cement board and no plasterboard.

I'm planning on tiling the walls from top to bottom and fitting a mixer shower over the bath.

The walls are currently painted with emulsion, I've decided I'm going to have a go at removing this just to be on the safe side before tiling.

Do I need to prime the cement board before I tile?

Does the bath/shower area need tanking?

Thanks
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wine~o
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Re: Do I have to prime or tank 15mm cement board

Post by wine~o » Fri Mar 15, 2019 5:22 pm

No need to prime or tank. (edit) assuming it actually is a cement board... Pics ?
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Re: Do I have to prime or tank 15mm cement board

Post by James11 » Fri Mar 15, 2019 5:50 pm

Thanks wine-o that's what I was hoping for, I've deleted the pictures now but they are over on the plumbers forum under the title ' can I fit this to tiled 15mm plasterboard ' if you wanted a look.

Cheers
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Re: Do I have to prime or tank 15mm cement board

Post by wine~o » Fri Mar 15, 2019 6:15 pm

Had a look and that might be cement board. Couldn't be certain though
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