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  1. #1
    Join Date
    Jul 2007
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    Discovery Bay CA
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    Default AdvanTech® flooring --Beyond the Hype

    The house we're building in Woodside California calls out 3/4" CDX for the subfloor. It looks like it's going to be a wet winter here in the SF BayArea and I don't want to use 3/4" CDX in the middle of the winter for subflooring because of the voids and knots in CDX that create soft and weak areas inside CDX plywood panels or delaminate. With 6 CMST staps dadoed into the top of the ¾” T&G CDX plywood subfloor, ¼”,the ¾” CDX plywood subfloor is really prone to delaminating and or developing soft spots.


    I'm trying to convince the Structural engineer that AdvanTech® flooring does not have edge swelling like the rest of the OSB subflooring products.

    Dumas-Residence-Woodside

    AdvanTech® flooring --Beyond the Hype
    Does anyone have any proof that AdvanTech subflooring edge swelling is less than the rest of the OSB products or CDX plywood? Besides the Hype / Proof from the AdvanTech website.


    Sim

    [NOTE: I belive that OSB is completely inferior to CDX for wall sheathing, but not for subfloor. ]

  2. #2
    Join Date
    Jun 2004
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    Portland, ME
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    Default Re: AdvanTech® flooring --Beyond the Hype

    Not sure what constitutes proof but it's all we use for sub-floor. It's a great product, tough as hell, no edge swelling that I've ever seen, holds up to wet weather, and it's got no formaldehyde.

    Why the hell does your SE get to make decisions on product? If he gives you a spec, I'm sure Advantech would meet it.

    Feel free to contact me if I can help more.

  3. #3
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    Default Re: AdvanTech® flooring --Beyond the Hype

    Quote Originally Posted by Dancing Dan View Post
    Not sure what constitutes proof but it's all we use for sub-floor. It's a great product, tough as hell, no edge swelling that I've ever seen, holds up to wet weather, and it's got no formaldehyde.

    Why the hell does your SE get to make decisions on product? If he gives you a spec, I'm sure Advantech would meet it.

    Feel free to contact me if I can help more.
    Dan, maybe before and after pictures of Avantech subflooring with a couple of inches of standing rain water on the subflooring? Or in your case a couple inches of snow on the subflooring.

    The SE in California is like a King. No one gets to build or use anything with their approval.

    Sim

  4. #4
    Join Date
    Jun 2004
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    Friday Harbor, San Juan Island, Washington
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    Default Re: AdvanTech® flooring --Beyond the Hype

    Last house I built used 3/4" sturdi-floor and I bought 3 gallons of Moore long oil primer and painted the deck as soon as we finished laying it. Couple hours with a roller on a stick. Got great results that way with a frame that was rained on several times. Advantech is available here now and I might switch next time just to see what all the talk is about.
    Bailer Hill Construction, Inc. - Friday Harbor, WA
    Website - Facebook

  5. #5
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    Jun 2004
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    Port Orchard, WA
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    Default Re: AdvanTech® flooring --Beyond the Hype

    Sim,

    We've used Advantech on a few houses and had great success with it. Right now it is about $23/sheet or so and LP Orange is about $15ish. We've had good success with the LP also. In my Picasa site, the "Bernies" job, got very very wet, but that floor did not swell at all. We ran dehumidifiers and when the inspector checked moisture content, we were nice and dry.

    I know some guys in the past have posted about having a chunk of Advantech in a bucket of water and it not swelling. I meant to do that here, but just forgot.

    It is a superior product to OSB or Ply. It is very dense and the floor feels more solid. It is very stiff.

    If you are a first time user, you can get a rebate on it too, or maybe that is just the Zip. I'm not sure.

  6. #6
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    Jun 2004
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    Portland, ME
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    Default Re: AdvanTech® flooring --Beyond the Hype

    No, Tim, you're right - the rebate is for all Huber products.

    I'll see what I have for pix. But I like Tim's idea - cut a chunk so the edges are exposed, throw it in a bucket, then throw it thru the SE's window to show how well it keeps its strength.

  7. #7
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    Jun 2004
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    Port Orchard, WA
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    Default Re: AdvanTech® flooring --Beyond the Hype

    Here in the Pacific NorthWet almost no one uses Ply. The last time we used it, about 12 years ago, on a roof, it delaminated within 2 days and we had to remove quite a few pieces.

    With OSB, we don't have problems unless it is just sitting in the rain. On the walls, not a problem.

  8. #8
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    Jul 2004
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    Desloge, MO
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    Default Re: AdvanTech® flooring --Beyond the Hype

    Quote Originally Posted by Tim Uhler View Post
    Here in the Pacific NorthWet almost no one uses Ply. The last time we used it, about 12 years ago, on a roof, it delaminated within 2 days and we had to remove quite a few pieces.

    With OSB, we don't have problems unless it is just sitting in the rain. On the walls, not a problem.
    Same here. I haven't seen a piece of plywood on a jobsite in many years.
    -----------------------------
    Dustin Wyatt
    -----------------------------

    The first principle is that you must not fool yourself—and you are the easiest person to fool. - Richard Feynman

  9. #9
    Join Date
    Apr 2009
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    midwestish
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    Default Re: AdvanTech® flooring --Beyond the Hype

    Man, is Dick gonna be in a bad mood when he gets here.

    Here where summer was well below "normal" temp and above in precip the projects I walked in Sept showed no adverse affects, nor did the better ply jobs for that matter. But I was seeing only dried in results and not always aware of total exposure duration/local condition.

  10. #10
    Join Date
    Mar 2006
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    Seattle, WA
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    11,339

    Default Re: AdvanTech® flooring --Beyond the Hype

    Quote Originally Posted by Tim Uhler View Post
    Here in the Pacific NorthWet almost no one uses Ply. The last time we used it, about 12 years ago, on a roof, it delaminated within 2 days and we had to remove quite a few pieces.

    With OSB, we don't have problems unless it is just sitting in the rain. On the walls, not a problem.
    That's funny- I've only used OSB on one small addition, and none of the houses I've been involved in building on have used OSB either. Especially on roofs- I've got some ply that's been sitting uncovered on a little shed out back for 3 years now without delaminating. There is a piece of OSB that I had on the back, but it fell apart a year ago even though it was a wall section.

    Perhaps you got some of that 4 ply? ;-)
    http://www.lavrans.com

    "He uses statistics as a drunken man uses lamp posts; for support rather than illumination." -Andrew Lang

  11. #11
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    Default Re: AdvanTech® flooring --Beyond the Hype

    I don't use OSB but I did go kicking and screaming when my lumber yard convinced me to try AdvanTech. I learned it is a good product and can be rained on several times without problems.

    I've never used anything less than 1-1/8" subfloor, it is pretty standard here on custom homes.
    ============================================

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  12. #12
    Join Date
    Oct 2005
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    off the coast of new england
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    Default Re: AdvanTech® flooring --Beyond the Hype

    I have been using advanTech for 5 years now and I would not go back to ply . I did a timber floor system with cypress ceiling boards last winter .I taped the seams where the Advantech went over the timber and cypress parts and the timber and cypress stayed perfect . we weathered several snow storms and several freeze thaw cycles and had no problems at all . I have not tried the LP Orange as it is not available locally. The Huber products that I have seen really work as well as they claim. I think we have used it on at least 30 houses in the past 5 years . Great product .
    Sim I can email you some pics if you want.
    Billy

  13. #13
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    Jun 2004
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    Default Re: AdvanTech® flooring --Beyond the Hype

    Sim:

    Like Lavrans I've never had a problems with plywood in the rain, I recall back in 75 having one piece start to delaminate, I took it out and brought it back to the yard to exchange I was so mad, I think the only piece of wood I've ever exchanged.

    What about asking the SE if he'll approve diagonal DF #2 1x8s instead of plywood? As I recall when plywood first showed up on the jobsites we continued to use 1x8s in the winter for fear of it coming apart, but they just had CD in those days, not CDX.
    “It is not an endlessly expanding list of rights —the “right” to an education; the “right” to health care; the “right” to food and housing. That is not freedom. That is dependency. Those are not rights. Those are the rations of slavery – hay and a barn for human cattle.” - Alexis de Tocqueville

  14. #14
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    Default Re: AdvanTech® flooring --Beyond the Hype

    Quote Originally Posted by Allan Edwards View Post
    I don't use OSB but I did go kicking and screaming when my lumber yard convinced me to try AdvanTech. I learned it is a good product and can be rained on several times without problems.

    I've never used anything less than 1-1/8" subfloor, it is pretty standard here on custom homes.
    I spent years selling plywood instead of "hamster board". I gave in about 5 years ago.What are you paying for 1 1/8"? I have a job coming up that could go that way, nobody stocks that here. Your framers must be some big dudes.

  15. #15
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    Default Re: AdvanTech® flooring --Beyond the Hype

    Quote Originally Posted by Andrew R. View Post
    I spent years selling plywood instead of "hamster board". I gave in about 5 years ago.What are you paying for 1 1/8"? I have a job coming up that could go that way, nobody stocks that here. Your framers must be some big dudes.
    Most recent job, 1-1/8" was approx $28/sheet.
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