Fitting kingspan between rafters, how fixed?

Discussion in 'Roofing and Guttering' started by Jonnabrad, 6 Jun 2011.

  1. Jonnabrad

    Joined:
    24 May 2011
    Messages:
    5
    Thanks Received:
    0
    Location:
    Durham
    Country:
    United Kingdom
    Hi

    About to start cutting kingspan to size and installing between rafters on a pitched mono ceiling. What is the best way to fix the insulation in place. I was thinking of screws through the rafter into the kingspan. Is this ok?


    Would this be done before or after felt and batterns are fitted.


    Thanks for any replies
     
  2. ^woody^

    Joined:
    3 Sep 2006
    Messages:
    14,007
    Thanks Received:
    1,435
    Location:
    Birmingham
    Country:
    United Kingdom
    Cut it so that it is a snug fit
     
  3. Jonnabrad

    Joined:
    24 May 2011
    Messages:
    5
    Thanks Received:
    0
    Location:
    Durham
    Country:
    United Kingdom
    Is that how it's done, cheers.

    Is it worth cutting it a mil or two larger than the space and carefully forcing it in?

    Jonna
     
  4. ^woody^

    Joined:
    3 Sep 2006
    Messages:
    14,007
    Thanks Received:
    1,435
    Location:
    Birmingham
    Country:
    United Kingdom
    It does not compress much, so cut it to size otherwise you have trouble getting it in.

    Bear in mind that the rafters may not be parallel and might be a bit twisted.

    Fill any gaps
     
    • Thanks Thanks x 1
  5. Jonnabrad

    Joined:
    24 May 2011
    Messages:
    5
    Thanks Received:
    0
    Location:
    Durham
    Country:
    United Kingdom
    Cheers woody!

    What would you fix the under rafter 50mm boards with, screws or roofing nails?

    Jonna
     
  6. ^woody^

    Joined:
    3 Sep 2006
    Messages:
    14,007
    Thanks Received:
    1,435
    Location:
    Birmingham
    Country:
    United Kingdom
    If you are plasterboarding, then just a few screws will hold it until you put the main screws through the plasterboard

    Otherwise, screws with some large "penny" washers, or get some builders band and cut that into pieces 35-50mm and screw through them
     
  7. Jonnabrad

    Joined:
    24 May 2011
    Messages:
    5
    Thanks Received:
    0
    Location:
    Durham
    Country:
    United Kingdom
    Cheers woody, apprieciate the input!
     

Share This Page