I'm getting ready to start a bathroom remodel on my new to me house. Currently it's quite 70's with nasty tile everywhere, all of which is coming off, along with the majority of the walls I asume. I'm planning on taking it to studs, replacing tub/vanity/ etc and tiling the floor and tub area. I want to do the walls in a tongue and groove cedar, most likely horizontally. Question is, can I just attach them to the studs directly or would it be better to do greenboard first, then cedar on top? Does it matter? I'll obviosly be putting in new insulation on the one exterior wall, but didn't know if having just the wood would be enough strength or noise barrier for other walls. Any help would be great. thanks.