Advertisement
If you have a new account but are having problems posting or verifying your account, please email us on hello@boards.ie for help. Thanks :)
Hello all! Please ensure that you are posting a new thread or question in the appropriate forum. The Feedback forum is overwhelmed with questions that are having to be moved elsewhere. If you need help to verify your account contact hello@boards.ie

Roof Tile Spray Insulation

Options
  • 23-01-2007 11:03pm
    #1
    AnneD
    Closed Accounts Posts: 5 ✭


    Our roof is about 70 years old and has no felt on it. (apparently typical of that era). It is in reasonable shape and is water tight. However, the mortar between the tiles is crumbling into the attic, and while the floor of the attic is insulated, the attic itself is very cold - driving some draughts into the house.

    I want to stop the dust from the mortar in addition to improving the insulation. I have heard about spray insulations that you can "do it yourself". Has anyone any experience of these - are they suitable for a DIY idiot??!!

    I had heard that tiles need to breath and that this insulation will prevent that, thus ultimately rotting the tiles - is this correct?

    Thanks!


Comments

  • Options
    #2
    Sparky
    Registered Users Posts: 22,231 ✭✭✭✭Sparky


    Moving to general DIY.


  • Options
    #3
    Blueberry
    Closed Accounts Posts: 3 ✭Blueberry


    The insulation never covers all 4 sides of the rafter, so there will always be an exposed surface that will breathe.


  • Options
    #4
    GreeBo
    Registered Users Posts: 27,178 ✭✭✭✭GreeBo


    you want to have a cold attic, but you need to make sure that the heat from your house is not getting into it.
    What insulation do you have on the attic floor?
    If the attic is cold when upstairs is warm then its doing its job, otherwise you are wasting money/energy heating an unused attic.


  • Options
    #5
    hobie
    Closed Accounts Posts: 1,338 ✭✭✭hobie


    have you seen these guys ? ..... :confused:

    http://www.spray-insulation.ie/

    You could do some research with this Google ....

    http://www.google.ie/search?hl=en&q=Roof+Tile+Spray+Insulation+&btnG=Google+Search&meta=


  • Options
    #6
    GreeBo
    Registered Users Posts: 27,178 ✭✭✭✭GreeBo


    Do you plan on living in the attic?
    If not then don't bother insulating the rafters, just between/across the joists.
    Have you actually identified any dafts or is it more of a feeling that there must be since the house is cold and the attic is cold?
    Do you have drafts around sockets/switches?


  • Advertisement
  • Options
    #7
    rasper
    Registered Users Posts: 795 ✭✭✭rasper


    I too have heard that it resticts ventilation to the roof timbers leading into rot, I wouldnt use it without some serious research into it


  • Options
    #8
    squid2
    Closed Accounts Posts: 2 ✭squid2


    This post is very old.
    BTW I got a good service done by http://www.closedcellsprayfoamsolutions.com although I haven't saved 35 % as they said on the website but about 20%.
    Have to say that i never expected to solve holes and heat loss in the attic with a bunch of foam spray.


Advertisement