+ Reply to Thread
Results 1 to 6 of 6

Thread: bathroom mold

  1. #1
    Join Date
    Oct 2009
    Posts
    1

    Default bathroom mold

    I have always had a moisture problem in my bathroom but I never had mold. I recently installed a exhaust fan and now I have mold, but it seams to be only on the paint. I used a bathroom paint and it was fine for a while but it came back. The wall board is solid and I have checked for leaks from the roof.

  2. #2
    Join Date
    Aug 2007
    Location
    Portland, Oregon, formerly of Chicago
    Posts
    1,583

    Default Re: bathroom mold

    Texnwis,

    I would check in the attic to make sure your connections to the ducts are tight and not allowing moisture to escape on the back side of the wall, especially where they are covered with insulation. Trapping moisture between the back of the drywall and the insulation is bad. Also check for any gaps around the metal fan box and the hole cut through the drywall. Caulk them shut.

    Before re-painting, make sure to kill any mold first. Clorine bleach is time tested for this purpose. Anti-mold paints will not kill existing mold, merely retard new surface mold spores. If you paint over active mold, it will return!

  3. #3
    Join Date
    Feb 2009
    Posts
    10

    Default Re: bathroom mold

    We experienced this in our former house. I used bleach to kill the mold before painting, then I added a mold inhibitor into the paint before painting. After that, we had no mold problems.

  4. #4
    Join Date
    Apr 2009
    Posts
    158

    Default Re: bathroom mold

    I just installed an exhaust fan myself and went with rigid ducts, but now I'm thinking I should have just went with flexible hose. I would have been easier to install (was a lot harder than expected in that tight space..going out to soffit) and would have air tight. I can feel the air a little on the elbows I used. I now think I'll need to tape them, but don't think I'll be able to get to the elbow at the soffit...and really don't want to disassemble. Ugh.

    Thoughts?

  5. #5
    Join Date
    Apr 2009
    Posts
    158

    Default Re: bathroom mold

    let me respond to my own question

    My fears were justified. I went into my attic to find damp roof and dripping nails. I just disconnected the fan until I can ensure that the plumbing is leak free. What a pain in the royal butt. I tried to do the job right, yet the elbows are obviously letting humidity into the attic. I think I should have used the flexible hose..which would have made the job a lot easier.

    I suppose I learned something. My attic panel is aside until things dry out.

  6. #6
    Join Date
    Dec 2009
    Location
    Casper, Wyoming
    Posts
    159

    Default Re: bathroom mold

    Is your exhaust fan vented through the attic? Definitely make sure that it is installed properly. Have you noticed condensation on the fan itself?

    Be careful when using the bleach and protect yourself with goggles, a mask and gloves. Open a window too. Spray the bleach on and let it sit for 15 min, or so. It should do the trick.
    ___________
    Find professional residential painters in your area.

Posting Permissions

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