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Question:

Can you put tile directly on top of green board in a shower or do you have to also use cement board?

Can you put tile directly on top of green board in a shower or do you have to also use cement board?

Answer:

With all due respect to ANY who answer, and after installing multiple thousands of sq. ft. of tile, and remodeling more bathrooms than much else; I'd like to scrap GREEN Board for use where water directly affects it. CAN YOU?........... is a question I answer so often here, in this manner...YES... but I add WHY... often. I'm going to assume GREEN board already exists,,,sigh, and so to tear it out seems silly at least. YES...DO concrete backer board, in any area where water will be an issue, when tile is the finish material. I want to impress on you that STUFF is HYPED in order to sell it. I haven't used Green Board in a very long time; and the only call backs I ever get are, Can you come and do MORE work. Steven Wolf Even in the trades; evolution happens ADD ON: THANK YOU George
May 11, 2017
Yes you can. Cement board has not been around all that long, and people used to tile over green board. Now that cement board is available at every building supply in the world, there is no reason to use green board. All it is , is a moisture resistant blue board. If water gets through your grout lines, you end up with a sponge in your wall. The only place I might use it, is on the ceiling of a shower stall.
May 11, 2017
Green Board In Shower
May 11, 2017
That is to put on green board and THEN put on a cement backer board. You have to get a tile w/ a special tile that has a return trim.(A4200 or A106 is the 2 most common) Not all tiles have this so you may have to properly set cement board ( w/ a vapor barrier) directly to the studs. Any other questions you can e mail me thru my avatar and check my qualifications GL
May 11, 2017
i would not use this junk in a shower green board is nothing but sheet rock you could take it out and use cement board instead or use cement boards on top of the sheet rock that has green paper on it what ever you do do not put the tile directly on that (green board) it does not hold up in a wet area like that. good luck
May 11, 2017

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