Australian standards and Code requirements we work to, with the source for each.
CUSTOM ORB corrugated profile is rated down to a minimum roof pitch of 5 degrees. Laid flatter than that, water sits in the pans instead of running off and the sheet holds moisture against the fasteners, no matter how well it is screwed down.
KLIP-LOK concealed-fix sheeting can be installed to a pitch as low as 1 degree in 0.48 mm base metal thickness, meeting AS/NZS 1562.1:2018. That is the usual answer for a flat rear extension where corrugated sheet would not comply.
Sheet metal roof and wall cladding in Australia is installed to AS/NZS 1562.1. It sets the minimum pitch, the fastening pattern and the side and end laps for each profile. Work that departs from it is what an insurer points at after a storm claim.
Last updated: 13 August 2026
Quoting roof repair in the Inner West is not the same job as quoting it elsewhere in Sydney. Adding roof area can trigger a water tank: Marrickville DCP requires on site detention for any extension adding 40 square metres or more of roof or paving, and allows a 5,000 litre retention tank… That is the kind of detail that changes the materials, the timing and the paperwork on a roof in Haberfield or the streets around it. Everything below links to the council or standard it comes from, so you can check it yourself.
Marrickville DCP requires on site detention for any extension adding 40 square metres or more of roof or paving, and allows a 5,000 litre retention tank instead on lots over 200 square metres, plumbed to toilets, laundry and taps.
Source: Marrickville DCP 2011, section 2.25Inner West Council advises that almost any home built or renovated before the mid 1980s is likely to contain asbestos, commonly in fibro sheeting, roofing and guttering. Over 10 square metres, or anything friable, legally needs a licensed removalist.
Source: Inner West Council, AsbestosThe Annandale conservation area records terracotta, slate and some iron roofing, with a skyline of chimneys, decorative fire-wall dividers between terraces, ridge capping and finials. Those party walls between attached terraces are a recurring source of flashing and box gutter leaks.
Source: Inner West Council, C1 Annandale HCAInner West gives only two free skip bin permits per property per year in unmetered streets, and one in metered areas. The permit has to be in hand before the bin arrives and takes two business days. On narrow terrace streets where the bin cannot fit on the property, that permit is part of the job.
Source: Inner West Council, skip binsThe whole suburb is a conservation area, recognised as Australia first planned garden suburb, with a period of significance from about 1900 to the 1940s. In practice almost every roof job in Haberfield is a heritage job.
Source: Inner West Council, C54 Haberfield HCAWe cover Haberfield, Ashfield, Summer Hill, Croydon, Leichhardt, Annandale, Balmain, Rozelle, Lilyfield, Marrickville, Dulwich Hill, Petersham, Stanmore, Newtown, Enmore, St Peters, Tempe, Sydenham and Lewisham.
Marrickville DCP requires on site detention for any extension adding 40 square metres or more of roof or paving, and allows a 5,000 litre retention tank instead on lots over 200 square metres, plumbed to toilets, laundry and taps.
Inner West Council advises that almost any home built or renovated before the mid 1980s is likely to contain asbestos, commonly in fibro sheeting, roofing and guttering. Over 10 square metres, or anything friable, legally needs a licensed removalist.
The Annandale conservation area records terracotta, slate and some iron roofing, with a skyline of chimneys, decorative fire-wall dividers between terraces, ridge capping and finials. Those party walls between attached terraces are a recurring source of flashing and box gutter leaks.
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