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Roof pitch at 21 degrees

  • 29-03-2013 12:52am
    #1
    lnos1
    Registered Users, Registered Users 2 Posts: 28 ✭


    Hi all,

    I am wondering if anyone could tell me what slates would go to 21 degrees? I tried google but couldn't find anything. Any advice appreciated.
    Thanks.
    Tagged:


Comments

  • #2
    A fella called fish
    Banned (with Prison Access) Posts: 188 ✭✭A fella called fish


    Isn't the minimum pitch 23 deg for slates?


  • #3
    Slates
    Registered Users, Registered Users 2 Posts: 344 ✭✭Slates


    The min pitch for slating is 25°, what rafter length is the 21° pitch slope ?


  • #4
    olympicweights
    Registered Users, Registered Users 2 Posts: 190 ✭✭olympicweights


    Try an Eco slate made in Athy?


  • #5
    sydthebeat
    Subscribers Posts: 42,172 ✭✭✭✭sydthebeat


    capco do a 17.5 deg slate

    tegral do a 15 degree slate


    obviously installation MUST be as per manufacturers recommendations


  • #6
    smellyfinger
    Registered Users, Registered Users 2 Posts: 51 ✭✭smellyfinger


    lnos1 wrote: »
    Hi all,

    I am wondering if anyone could tell me what slates would go to 21 degrees? I tried google but couldn't find anything. Any advice appreciated.
    Thanks.

    If you have valleys I would avoid slating below 27*
    I've been roofing for almost 30 years and have a lot of experience. It may not leak for a few years but from experience it will. I know a local lad that asked me to price his roof which was 25* and I told him it was too flat as the rafters were 8 meters long. Anyway he got a lad fresh from fas with basic knowledge to do it and it leaked from day 1. They stripped and re slated it as mostly the valleys were leaking and after 2 years it leaked again. I have since tiled the whole roof with low pitch tiles and 7 years later its still dry. Sales reps will sell you whatever they have and can convince you that it's fit for purpose but experience is hard to beat.


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  • #7
    gman2k
    Registered Users, Registered Users 2 Posts: 4,076 ✭✭✭gman2k


    A fella called fish wrote: »
    Isn't the minimum pitch 23 deg for slates?
    Slates wrote: »
    The min pitch for slating is 25°, what rafter length is the 21° pitch slope ?

    You can slate lower, just ask the technical dept of the manufacturer for a spec to match the pitch.
    You will end up spending more, due to increased headlap, detailing etc.
    Do not rely on a roofer/ slater to just slate the roof for you working on his own initiative, get the correct spec.


  • #8
    Gsmith84
    Registered Users, Registered Users 2 Posts: 2 ✭Gsmith84


    lnos1 wrote: »
    Hi all,

    I am wondering if anyone could tell me what slates would go to 21 degrees? I tried google but couldn't find anything. Any advice appreciated.
    Thanks.

    Was wondering did you go a head with the 21 degree pitch and was it a success.


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