[Luelf21]

I would like to add some tiling around my bathtub and I had a few questions to see if i could even do it. The amount of tile work will be very small (about 18 sq. ft total) and only rise up the wall about 2 ft. Enough basically to keep most of the water off of the dry wall.

My question is, can I install this tile directly to the existing drywall? The drywall installed is 1/2" Gypsum Kal-Kote plaster board with two coats of Kal-Kote plaster over it. It has a textured sand float finish on it so it is not smooth.

If I can install directly over the textured wall, what is the process I need to follow to ensure it will last and hold up appropriately?

Thanks.

[REXAMUS]

You could keep the drywall if you used Kerdi but I'm not sure if you would have to get rid of the texture first or not. Or you put a little CBU in and use something like Redgard.

[Luelf21]

If I were to get rid of the drywall and install cement board, would I just cut the drywall out in the area to be tiled, install the same thickness cement board and just tile over the cement board?

The wall would mainly be drywall except where the cement board is installed but if its the same thickness it shouldn't matter right?

[REXAMUS]

Originally Posted by Luelf21

If I were to get rid of the drywall and install cement board, would I just cut the drywall out in the area to be tiled, install the same thickness cement board and just tile over the cement board?

The wall would mainly be drywall except where the cement board is installed but if its the same thickness it shouldn't matter right?

Yep, just make sure you use something on the CBU for waterproofing. One container would take care of it and it's not expensive.

[oh'mike]

You could leave the drywall --and if you wish--coat the wet area with Redguard---a waterproofing--painted on---Look at the Home Depot in the tile section---

[REXAMUS]

Originally Posted by oh'mike

You could leave the drywall --and if you wish--coat the wet area with Redguard---a waterproofing--painted on---Look at the Home Depot in the tile section---

Correct me if I am wrong...I don't believe Redgard is approved to go on drywall.

http://www.custombuildingproducts.co...s/redgard.aspx

[oh'mike]

I never checked on Redguard--I use Hydroban and it is fine over drywall----so I believe Redguard should work in the OPs situation---

[Luelf21]

so I just apply this redguard over the painted and textired drywall and let it dry, then install tile like normal?

[REXAMUS]

Originally Posted by Luelf21

so I just apply this redguard over the painted and textired drywall and let it dry, then install tile like normal?

You can chat with a rep on redgards website. I would verify that it's allowed to be used with drywall before doing anything.