+ Reply to Thread
Page 1 of 2 12 LastLast
Results 1 to 10 of 14
  1. #1
    Join Date
    Aug 2007
    Posts
    17

    Default Deteriorating cement board clapboards.

    The clapboards near the stairs are disintegrating. I believe they are fiber cement board. The stairs are stone, and lead to the front door. I'm not sure what to do to prevent this from happening again. We thought about flashing, but am not sure how to do it, or if it would look right.
    This house was recently purchased by a friend. I've done other repairs and interior painting, but am stuck on this one.

    http://flic.kr/p/fioFLP

    http://flic.kr/p/fioFKT

    I've tried to embed the photos in the message but couldn't do it. Kept getting invalid image. Sorry about that.

  2. #2
    Join Date
    Aug 2007
    Location
    Portland, Oregon, formerly of Chicago
    Posts
    1,610

    Default Re: Deteriorating cement board clapboards.

    What is the nature of the deterioration? Cementboard, at least Hardi-Plank, is highly resistive to water damage. the lesser fiberboard products will turn revert to sawdust when wet.

  3. #3
    Join Date
    Sep 2012
    Location
    Boston
    Posts
    888

    Default Re: Deteriorating cement board clapboards.

    i can't open your pictures but from what you've described i highly doubt that you have fiber cement clapboards.

  4. #4
    Join Date
    Jul 2010
    Location
    SoCal
    Posts
    5,436

    Default Re: Deteriorating cement board clapboards.

    digger,
    Try posting a photo on photobucket.com and then give us the link details.

  5. #5
    Join Date
    Aug 2007
    Posts
    17

    Default Re: Deteriorating cement board clapboards.

    [/URL]

    [/URL]


    I'm not home right now, but i will check the extra clapboard that were stored under the deck. I think the previous owner let snow stay on the steps in that area.I thought constant wetness could cause this kind of damage.
    Last edited by digger; 07-31-2013 at 12:51 PM.

  6. #6
    Join Date
    Sep 2012
    Location
    Boston
    Posts
    888

    Default Re: Deteriorating cement board clapboards.

    i'm not saying that it's not cement board but it doesn't look like it is in the picture you posted. you can put fiber cement clapboards in the deep end of a swimming pool for a year, let them dry out for a day then install them and they'll be fine. it looks like the paint is failing where the claps meet the steps.

  7. #7
    Join Date
    Jun 2009
    Posts
    271

    Default Re: Deteriorating cement board clapboards.

    If you are in an area that has snow and ice and salt or a deicing fluid was used it would cause the cement board to break down.

  8. #8
    Join Date
    Sep 2012
    Location
    Boston
    Posts
    888

    Default Re: Deteriorating cement board clapboards.

    Quote Originally Posted by Clarence View Post
    If you are in an area that has snow and ice and salt or a deicing fluid was used it would cause the cement board to break down.
    good point, didn't think of that....and that's true

  9. #9
    Join Date
    Dec 2010
    Location
    Houston Texas
    Posts
    2,504

    Default Re: Deteriorating cement board clapboards.

    flashing will involve some air room for the space to dry. If snow salt is a factor, lead flashing is in order.

  10. #10
    Join Date
    Jan 2010
    Location
    Northern Virginia
    Posts
    1,001

    Default Re: Deteriorating cement board clapboards.

    Hardi recommends not placing their products in the splash zone, but having 2" vertical space above any horizontal surface. You run flashing down to the steps instead of cement board.
    Casey
    Remove not the ancient landmark, which your fathers have set.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •