Roofing& Cladding
Galvanised, aluminium-zinc and pre-painted steel sheet for roofing, walling and architectural cladding applications.
We source a comprehensive range of coated and pre-painted steel sheet products for roofing, walling and cladding applications across Australia. Our pre-painted steel features high durable polyester (HDP) / super polyester coating systems applied to aluminium-zinc alloy coated (AZ070–AZ200) or galvanised (Z120–Z275) substrates — offering exceptional resistance to weathering, UV degradation and corrosion. Available with optional lead-free systems meeting ASTM A755/A755M requirements. Backed by a 10-year paint coating warranty.
Product Range
Hot-Dip Galvanised Steel Sheet (GI)
Zinc-coated flat steel sheet with coating mass from Z80 to Z600. Base metal thickness 0.13–3.0mm, widths to 1260mm. Used for roofing, purlins, framing and general construction.
Aluminium-Zinc Coated Steel Sheet (GL)
55% aluminium / 43.5% zinc / 1.5% silicon alloy coating for superior corrosion resistance. Coating mass AZ30 to AZ200. Ideal for roofing and walling in coastal and industrial environments.
Pre-Painted Steel — High Durable Polyester (HDP)
Exceptional resistance to rain, sun and other natural elements. Superior UV resistance with outstanding colour retention and consistency. Topcoat: 20–25 μm, backcoat: 5–25 μm, gloss: 30%–60%. Great durability, flexibility and excellent overall adhesion and corrosion resistance.
Pre-Painted Steel — Regular Modified Polyester (RMP)
Durable pre-painted finish suitable for roofing and cladding in standard environments. Excellent adhesion, colour stability and corrosion resistance.
Pre-Painted Steel — PVDF Coating
Polyvinylidene fluoride coating offering exceptional colour retention, dirt resistance and durability. Recommended for premium architectural applications and environments within 2000m of the coast.
Pre-Painted Steel — SMP Coating
Silicone Modified Polyester coating with excellent gloss retention and weathering performance for roofing and walling in moderate environments.
Lead-Free Option
Optional lead-free coating systems available, meeting the lead content requirements of ASTM A755/A755M.
10-Year Paint Coating Warranty
Manufacturer-backed 10-year warranty on paint coating performance and integrity.
Common Applications
- Construction and commercial building
- Home appliance manufacturing
- Industrial projects and facilities
- Roofing in normal environmental climates
- Cladding for locations 0–2000 metres from the sea
- Residential and commercial roofing
- Architectural wall cladding and facades
- Fencing, guttering and rainwater goods
Relevant Standards
- ASTM A653/A653M — Hot-dip zinc-coated steel sheet
- ASTM A792/A792M — Aluminium-zinc alloy-coated steel sheet
- ASTM A755/A755M — Pre-painted steel sheet
- AS 1397 — Steel sheet and strip (hot-dip zinc-coated / aluminium-zinc coated)
- AS/NZS 2728 — Pre-finished/prepainted sheet metal products
- BS EN 10346 — Continuously hot-dip coated steel flat products
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