1. Visiting from the US? Why not try DIYnot.US instead? Click here to continue to DIYnot.US.
    Dismiss Notice

Condensation on garage roof

Discussion in 'Roofing and Guttering' started by shagster, 6 Sep 2011.

  1. shagster

    shagster

    Joined:
    11 Jan 2011
    Messages:
    289
    Thanks Received:
    18
    Location:
    Oxford
    Country:
    United Kingdom
    Whenever I do any serious work in the garage if it's cold I get condensation on the roof dripping down. I'm pretty sure there's no leak. It's a simple corrugated sheet asbestos roof, and I've been considering sprayed foam to stop this.

    Is there any other way to solve this problem? Any tips on what system to hire/buy to do the job?

    thanks,
    S.
     
  2. freddiemercurystwin

    freddiemercurystwin

    Joined:
    21 Jan 2007
    Messages:
    19,753
    Thanks Received:
    2,206
    Location:
    Devon
    Country:
    United Kingdom
    You need to increase ventilation plain and simple, increasing the insulation will not in itself aleviate the problem.
     
  3. Sponsored Links
  4. ^woody^

    ^woody^

    Joined:
    3 Sep 2006
    Messages:
    33,584
    Thanks Received:
    4,564
    Location:
    West Mids
    Country:
    United Kingdom
    You wont get much more ventilation than opening the garage doors to ventilate, and it wont stop the condensation

    Your spray foam idea may work, or any other insulation may help
     
  5. Morrisman

    Morrisman

    Joined:
    13 Jun 2007
    Messages:
    69
    Thanks Received:
    2
    Country:
    United Kingdom
    You need something that will reduce the sharp temperature difference between the warm air inside and the cold asbestos.

    Spray foam will do this.

    Simply adding more ventilation will reduce the temperature differential, but by making your garage cold. Not very useful if you want to work comfortably.

    You could add a layer of insulation sheeting, something that will isolate the interior air from the roof. Preferably not polystyrene, as that is flammable, but I am sure there is some sort of board you can use.
     
  6. DIYnot Local

    DIYnot Local

    Joined:
    3 Sep 2019
    Country:
    United Kingdom

    If you need to find a tradesperson to get your job done, please try our local search below, or if you are doing it yourself you can find suppliers local to you.

    Select the supplier or trade you require, enter your location to begin your search.


    Are you a trade or supplier? You can create your listing free at DIYnot Local

     
  7. Sponsored Links
Loading...

Share This Page