Home Dwelling Guttering Standards in NSW

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    • 3 Feb 2000 at 9:27 pm #278437
      Avatar photoMasterPlumbers
      Keymaster

        I would like to know (or how I can find out) what the standard was for determining the number and size of downpipes on domestic dwellings in 1995

      • 6 Feb 2000 at 1:31 am #298523
        Avatar photoGuest
        Participant

          Uniform Plumbing Code covers gutters. You might go to a public library and see if they have an older copy of the UPC.

        • 10 Feb 2000 at 4:58 am #298524
          Avatar photoMossy
          Participant

            Downpipe sizes and number has always been a grey area. The standard gutter for cottages is 125mm wide. The ave size of a downpipe is 100 50 mm. It is generally accepted a 110 50 downpipe will carry the water off 70 m2 of roof. Work out m2 of roof area , divide by 70 = no. of dp’s needed.
            Australian Standard HB39 – 1992 has some info eg. the cross section of a downpipe should be 1/2 the cross section of the gutter. But nothing on how many needed.
            The newer code AS3500 has some info but it was not included in 1995.

            Mossy

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