25 responses on “Bathtub And Shower Wall Damage – Green Board Drywall And Tile Cracks

  1. bubblegumboobs

    How do I put green board behind tile AROUNd already installed new shower
    valve? the plumber took 3 tiles off to put in new valve. Now I have a
    hole/can see through other side! and the tight space makes no room for a
    clean cut of green board. need help!

  2. Jonathan Ortiz

    i have a question. just recently my tiles from my bathroom upstairs started
    falling. come to find out i have really bad water damage. the drywall came
    off like nothing. but the thing im worried about was not the drywall but
    the wood paneling to the outside of the house is also damaged. coming off
    like sand if touched. there was alot of moisture in between drywall and
    wood paneling. would you know how to replace the wood paneling before i go
    forth in replacing everything else?

  3. slater1ist

    amazing how when you are purchasing a home, you don’t really know what you
    are buying. Its very easy to mask things because people usually only care
    about their neighborhood being safe and the school system. lol

  4. gregvancom

    You could try it and let me know how it turns out, but I would just use
    some type of cement fiberboard instead.

  5. 1234plee4321

    I primed it, then two coats of red gard water proofing membrane, caulked
    all cracks. I am fully confident it will hold. My house is 43 years old and
    they just used drywall back then and there was only one shady area in my
    shower. They did nothing like I just did.

  6. gregvancom

    I’m not a big fan of either one of them, but if I had to choose, I would
    use the cement fiberboard. One of the biggest problems I’ve had with using
    cement fiberboard for tile is that it can crack in the corners and even
    sometimes where the pieces join together, even if they’re taped and
    everything is installed to meet the manufacturers installation instructions.

  7. YY4Me133

    Thanks for the info. It’s not a job I’m contemplating, but I always have
    questions, and you always have answers. :o)

  8. gregvancom

    I hear you there and as always, am glad to be able to steer people away
    from things they shouldn’t do or at least shouldn’t do in my opinion.

  9. gregvancom

    If you do end up with any problems in the future, feel free to share them
    with us. Who knows, you could have invented the next waterproofing system.

  10. DasBootII

    why would ANYONE tile over drywall? Green or not?! It’s old school concrete
    over lath or nothing….right?!

  11. Misty poplin-dunn

    So if I am removing tile and green board I need use the cement board if I
    want to install a surround?

  12. gregvancom

    I love it, unless you like stacking tile, because you’re absolutely right
    you probably will get another shot at installing it. It’s hard to imagine
    how many building material product failures I’ve witnessed in my short

  13. gregvancom

    I couldn’t agree 100% more and if you’re really looking for an excellent
    initial product, it really is the only way to go. The only problem is that
    your average construction worker and do-it-yourselfer, would have a
    difficult time installing it and that’s where the big money is, making a
    product that everyone can use and install, no matter what the consequences
    or damage it will create in the future.

  14. manholewisdom

    Lately the tile industry is pushing water proof membrane systems. A paint
    on solution is a product called red guard. And another product called kerdi
    which is a rubber sheet material. Both are good if used in accordance to
    manufactures directions. Never tile directly over green board unless you
    like to stack tile, cause you’ll get another shot at it in a couple of
    years or so. lol Owens Corning had a vitreous tile that used silicone grout
    and tile and I believed it performed well on greenboard.

  15. gregvancom

    You’re welcome and there’s nothing worse than a job half done, especially
    when there’s something interesting on television. Just kidding, good luck
    with your project and thanks for watching the videos.

  16. gregvancom

    You can use a concrete-based fiberboard product as a tile backing board or
    do it the old-fashioned way and use lath and plaster. Lath and plaster
    would be the same process as stuccoing the exterior of a building, without
    the finish coat. However, the concrete-based fiber boards have been known
    to create cracks in the corners and I’ve seen this more than once. I
    recommend the lath and plaster, for long-term durability.

  17. lvlagnetoTwo

    Green board is garbage. If you spend a few more dollars you can get
    completely water resistant cement board. It’s heavy, but worth the minor

  18. YY4Me133

    You said most contractors don’t use greenboard drywall behind tile anymore,
    but you didn’t say what’s uses in its place.

  19. Sesa C

    thank you for this info as having to figure out what to do with a job thats
    1/2 done already and left unfinished. At least there is something that can
    be added to help. Not sure if tiling but nice to have better options.

  20. 1234plee4321

    Well what if you use the green board, They used a water proof sealer on it,
    like drylock??? Made sure all seams were caulked???

  21. lvlagnetoTwo

    I had my bathroom covered entirely with cement board, and then skim coated
    where clean wall would be revealed above tile. The crew thought I was
    nuts.. but according to your video, I am not nuts. Better safe than sorry!