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AS 2050

AS 2050:2018 Installation of roof tiles is the Australian Standard for tile fixing, sarking, ridges, and flashings on residential pitched-tile roofs.

By Chalkline. Last updated 29 May 2026. Verified 29 May 2026.

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AS 2050:2018 Installation of roof tiles is the Australian Standard for fixing concrete and terracotta roof tiles to a pitched timber-framed roof. It is the document a roofer is working to: tile fixing methods, head lap, sarking requirements, ridge and hip detailing with flexible pointing, and flashings around penetrations.

See the deep article at AS 2050 (compliance) for the full clause-level breakdown.

What it covers

  • Tile types: concrete (AS 2049) and terracotta (AS 2049 / 4046) tile installation.
  • Fixing methods: clip, screw, twist nail, depending on wind classification.
  • Sarking: when required by wind classification, roof pitch, or BAL.
  • Head lap: minimum lap by roof pitch (steeper roof = less lap; flatter = more).
  • Ridge / hip: bedded-and-pointed with flexible pointing, or dry-ridge mechanical system.
  • Flashings: lead, aluminium, lead-free for penetrations.

Versions

  • AS 2050:2018 is the current edition (replaced AS 2050:2002).
  • Cited in NCC 2022 Volume Two as a deemed-to-satisfy reference for tile roofing.

For a builder

  • Spec AS 2050 in the contract for any tile-roof scope.
  • Verify wind classification first (per AS 4055). Wind class drives the tile-fixing schedule.
  • The roofer needs the standard at hand. Don’t accept “I know how to fix tiles”; the fixing schedule changes between wind classes and pitches.

Category: Standard / roofing.

See also

Last updated: 2026-05-29. Verified: 2026-05-29. Quarterly review for currency.

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