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Discussion Forum

denshield

Craigabooey | Posted in General Discussion on February 6, 2006 07:42am

What does everybody think of using Denshield in shower and tub surrounds? I’ve used it a couple of times and it cuts and handles just like sheetrock. I hate cement board! It’s heavy and messy! Denshield comes in 3×5 sheets too!

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  1. Bdub | Feb 06, 2006 08:21pm | #1

    I used it in our rentals and have no problems so far. Granted its only been 4, maybe 5 years, since I used it - but so far so good. Plus, its much easier to heft up to the third floor of an old victorian.

  2. JHOLE | Feb 07, 2006 01:16am | #2

    I like it and have not had any problems in 8+- years of using it - no callbacks.

    Remodeling Contractor just on the other side of the Glass City

  3. User avater
    EricPaulson | Feb 07, 2006 01:36am | #3

    Well, it's NOT cement board. I rarely use it to the bottom of a shower or a tub. Cement board is best there.

    If you insist on using Denshield down low, make sure to caulk the edge that hits the tub and in the shower, try to keep it off the mud or floor 1/2".  Thinset and fibatape all the joints and corners ans skim the screwheads. And use the right srews, don't use roofing nails or sheetrock screws.

    It's really not a great idea in showeres at all. You can probably get away with it in a tub depending on the client and thier lifestyle.

    Or just use cement board. Cut it outside with a diamond blade, a good mask and glasses. It won't take much longer and you will NOT have to worry a drop.

    Eric

    [email protected]

     

     

    It's Never Too Late To Become What You Might Have Been

     

     

     

  4. semar | Feb 07, 2006 02:33am | #4

    we have been using it for many years and had no problems with it. Key is proper installation. I would seal the bottom edge with a lasting waterproof agent. Denseshield is highly waterresistant but not waterproof in itself.

    We are switching to the Schluter system. Absolutely troublefree.

    check http://www.schluter.com , scroll down to showerinstallation(they have a video) but it can be used for tubsurrounds likewise.

  5. bhackford | Feb 07, 2006 03:55am | #5

    I have used it alot without problems for tile floors.  Against the rules but works well.

  6. Notchman | Feb 07, 2006 05:24am | #6

    I can attest first hand that, if it gets wet, it will behave just like any other sheetrock.

    I would NEVER use it in a shower.

    1. pinko | Feb 07, 2006 06:00am | #7

      >>if it gets wet, it will behave just like any other sheetrock.No it won't. And if it's installed correctly, it really can't "get wet". Do a search on the John Bridge forum--or, hell, Google it--for "Denshield failures" (or the like). None found. FYI, I've tested samples by leaving it in 5 gal buckets of water for weeks. I can attest that it does NOT behave like sheetrock.>>I would NEVER use it in a shower.Well, that's what it's made for. And it appears to perform just fine as it was intended. I'd be happy to hear some verifiable testimonies, however, of professionals who have witnessed Denshield failures ( in proper installs). Seriously. Please share.

      1. Notchman | Feb 07, 2006 04:15pm | #8

        I bought a unit of Denshield for a new home I was building four years ago (Denshield was spec'd by the customer). 

        One corner of the unit got wet during transport, affecting, IIRC, about a half dozen sheets.

        The corners of those sheets softened and the f/g impregnated paper separated from the gypsum core.

        While we used the unaffected Denshield throughout the project, I was leery of it's use in the shower areas and convinced the HO to use cement backer board in those areas.

         

        1. pinko | Feb 08, 2006 05:33am | #15

          >>One corner of the unit got wet during transport, affecting, IIRC, about a half dozen sheets.
          >>The corners of those sheets softened and the f/g impregnated paper separated from the gypsum core.Installed properly, Denshield will not get its 'corners wet'. All seams/ penetrations are sealed w/ thinset and the tub/wall transition is to be silicone caulked. The acrylic coating is waterproof. It can't get wet. But if it does, it does not dissolve like sheetrock. I'm not saying it's superior to hardi or cbu's, only that it performs as claimed by the manufacturer. It is easier to work with, and it's cheaper. And I've not once (and I've looked hard!) heard anyone claim it failed in a proper installation. I've used it plenty and like it. Kerdi is a superior product, but I'm not convinced cbu's are (they DO absorb moisture; Denshield and Kerdi block moisture at the surface).

          1. KirkG | Feb 08, 2006 05:39am | #16

            Hey Fruffmike,No fair editing your posts! :-)kirk

          2. Notchman | Feb 08, 2006 07:06am | #18

            I must admit, I jumped to conclusions;  the material I was using was Densglass Gold....not the Denshield, which I have NOT used....

            I stand corrected.....

          3. FHB Editor
            JFink | Aug 09, 2006 10:45pm | #19

            DensGlass, Densglass Gold, DensShield - these guys at Georgia Pacific need to come up with more easily-differentiated names! This topic is bringing me back to the time I wrote up a piece for What's the Difference in the magazine about non-paper faced drywall. The names really start to get confusing after awhile...Justin Fink - FHB Editorial

            Your Friendly Neighborhood Moderator

    2. ruffmike | Feb 07, 2006 07:22pm | #9

      I agree with that assessment, I too have seen densglass crumbling and starting to mold when left to the elements. As much as I hate to work with cement board, why take the risk?

      Edit- I see Densglass/ Denshield are perhaps different products, the latter being suggested for tile backer, the former for sheathing. Still, I don't think gypsum and moisture belong in the same sentence or assembly.

                                  Mike

          Trust in God, but row away from the rocks.

      Edited 2/7/2006 11:34 am by ruffmike

      1. KirkG | Feb 07, 2006 08:51pm | #10

        Ruff mike, I think you reversed the two names. Denshield is the tile backer and Densglass is either the sheathing material or the new "mold proof" drywall.Kirk

        1. JAlden | Feb 07, 2006 09:27pm | #11

          This is a timely thread as I will be doing a tub with shower very soon.

          I was originally planning to use concrete board but the tile store recomends Denshield.

          Now I'm really confused. My gut tells me to use concrete board. I don't see a down side to it.

          Limestone tiles if it makes a difference.

          I also need some help on the drain vent but I'll start another thread.

          1. Cy | Feb 07, 2006 11:15pm | #12

            I just did a shower using the schluter system. I did it over concrete backer board, although, in the video on their site, it looks like they use it over drywall. If you use the densheild, it would be good to use something like the schluter kerdi system.

        2. ruffmike | Feb 08, 2006 01:55am | #13

          Read carefully. ; ^ )

          I have installed too much densglass commercially and dispise it almost as much as cement board. The project I am starting tommorrw is exterior sheathed with about 75% cement board and 25% densglass. Not really looking forward to that!                            Mike

              Trust in God, but row away from the rocks.

      2. andy_engel | Feb 08, 2006 05:53am | #17

        Your edit is correct. I used Denshield around all the showers in my house 6 years ago. Not trusting a new material, I dropped a piece of it in a bucket of water. It floated. Two weeks later, it was still floating, and as far as I could see, it was as good as the day it was minted. I saw it float, now I'm a believer.Andy

        "Never try to teach a pig to sing. It wastes your time and annoys the pig." Robert A. Heinlein

        "Get off your dead #### and on your dying feet." Mom

  7. plumbbill | Feb 08, 2006 04:19am | #14

    I did 100% of my tub suround in 99' that was the first time I ever seen it.

    Has held up perfectly.

    I was plumbing a 25story apt at the time & they did all the tubs & showers in it--- BTW that's where I got it from ( freebie).

    I soaked a 1' wide 7' long piece in water 48 hours so I could bend it to the radius of my allcove----- no luck the water wouldn''t soak in.

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