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

GRP Garage Roof and Condensation

Discussion in 'Roofing and Guttering' started by Boxerkid, 29 Jan 2012.

  1. Boxerkid

    Boxerkid

    Joined:
    29 Jan 2012
    Messages:
    1
    Thanks Received:
    0
    Location:
    Yorkshire
    Country:
    United Kingdom
    Wonder if anyone can help with this please we recently had a number of garage flat roofs replaced with I think the correct term is GRP (fibreglass roofing) and since then we have a serious increase in dampness and condensation in the garages which was never a problem until we had the roof done. The old construction was felt and pebbles. Any thoughts and advise on how to cure this problem please.
     
  2. Sponsored Links
  3. freddiemercurystwin

    freddiemercurystwin

    Joined:
    21 Jan 2007
    Messages:
    19,655
    Thanks Received:
    2,194
    Location:
    Devon
    Country:
    United Kingdom
    You need to introduce some additional ventilation, either some air bricks in the walls or at the eaves.
     
  4. RoofDry01

    RoofDry01

    Joined:
    31 Jan 2012
    Messages:
    11
    Thanks Received:
    0
    Location:
    Sheffield
    Country:
    United Kingdom
    The roofs should have been cross flow vented during installation.
    As they wasn't cross vented i agree with freddy and the brick vents.

    To vent it properly you need the vents to be at both the back of the garages and at the front! It is no use just putting one or two vents
    at one end because you won't create a flow of air through the garage.

    Ventilation acts as a vacuum, pulling air in one end and out of the other
    end!

    You will be getting condensation also because when you park a car
    in a garage whilst the engine is still warm the heat from the engine
    hits the underside of the cold plywood and condenses.
    This is why you should ventilate a garage!!

    Hope this was of help.

    Cheers RoofDry
     
  5. 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

     
Loading...

Share This Page