+ Reply to Thread
Results 1 to 10 of 11

Hybrid View

  1. #1
    Join Date
    Feb 2011
    Posts
    3

    Default Condensation Problem

    We live in a 1977 ranch style, single story home. Our master bath consists of the toilet and the shower. There is a light/exhaust fan combo, so whenever we use the shower the fan is running. There is a window, too. The condensation in the room is overwhelming - it doesn't matter if we have the door and window open and the fan on, the condensation is running down the walls and dripping off the light fixture. The only time this doesn't happen is when the sun has been up for a few hours and the temperature outside is over 70F. From the ceiling to about 3 feet down on the walls looks permanently wet and the paint always feels sticky. We are desperate to fix this before any more damage is done: what can we do to solve this condensation problem?

  2. #2
    Join Date
    Jan 2009
    Location
    Needham, MA
    Posts
    559

    Default Re: Condensation Problem

    sounds like your walls are not insulated. when you take a hot shower and the wall temperature is cold, like 60 degres or less, then you will get a large amount of condensation on the walls. another possibility is that you don't have any heat in your bathroom causing the walls to be cooler than normal. it makes sense that, as the sun warms things up, your problem slowly disappears. what would i do? a little exploring.....cut a small hole in a wall or two and see if it's insulated. install a larger capacity ceiling vent fan. make sure the room is getting heated properly.

  3. #3
    Join Date
    Dec 2010
    Location
    Houston Texas
    Posts
    2,916

    Default Re: Condensation Problem

    Also check the attic insulation above this space. If all the heat is rising out the ceiling, it can't stay in the room.

  4. #4
    Join Date
    Feb 2011
    Posts
    3

    Default Re: Condensation Problem

    Thanks for your replies. I would guess lack of insulation is an issue; I'm told that insulating houses wasn't a top priority for builders here in Southern California until the last 10 years or so.

  5. #5
    Join Date
    Jan 2011
    Posts
    93

    Default Re: Condensation Problem

    and check if the exhaust fan is actually exhausting to the exterior. There could be another problem brewing in the attic or wall cavity.


    exhaust fans should be on a timer so it can continue to exhaust long after the user has left the room.

    If this bathroom is original to the house it's probably time for a full gut and new bath anyway.

  6. #6
    Join Date
    Aug 2007
    Posts
    612

    Default Re: Condensation Problem

    There are different size exhaust fans. Maybe put in one that moves more cfm.

Posting Permissions

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