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Aluzinc Steel Roofing Sheet
Thickness: 0.14 mm – 1.2 mm
Width: 600 mm – 1250 mm
Zinc-Aluminum Coating Weight: AZ40–AZ275
Aluzinc Steel Roofing
High-Performance Roofing Solutions from Promisteel
What is Aluzinc Steel Roofing?
Aluzinc Steel Roofing, also known as Galvalume Roofing, is a product specifically designed for roofing. It is made of cold rolled steel bonded to an alloy containing 55% aluminium, 43.4% zinc and a small amount of silicon (1.6%). This material is preferred by customers for its corrosion resistance and longevity. At Promisteel, we specialise in the production and transport of aluminium-zinc steel roofing panels of the highest quality.
Technical Specifications
|
Parameter |
Details |
|
Base Metal |
Cold-Rolled Steel (CR) |
|
Coating |
55% Aluminum, 43.4% Zinc, 1.6% Silicon |
|
Thickness |
0.14 mm – 1.2 mm |
|
Width |
600 mm – 1250 mm |
|
Length |
Customized (as per roofing profile) |
|
Tensile Strength |
300 – 550 MPa |
|
Zinc-Aluminum Coating Weight |
AZ40–AZ275 |
|
Surface Finish |
Regular Spangle / Skin Pass / Anti-fingerprint |
|
Profile Types |
Trapezoidal, Corrugated, Tile-profile |
We support OEM/ODM and custom profiles based on project needs.
Features
Key Features of Promisteel Aluzinc Steel Roofing
Superior Corrosion Resistance
This composition creates a dense, protective layer that resists corrosion from moisture, salt, and harsh weather conditions. The aluminum forms a stable oxide barrier, while zinc provides cathodic protection, making it up to 4 times more corrosion-resistant than traditional galvanized steel
High Strength-to-Weight Ratio
The steel substrate combined with the Aluzinc coating ensures structural integrity while maintaining a lightweight profile. This makes it easy to handle and install, reducing labor costs and minimizing stress on building structures
Excellent Heat Resistance
Aluzinc steel can withstand temperatures up to 315°C, making it suitable for applications like chimney pipes, ovens, and roofing in regions with extreme climates. The coating's thermal stability prevents deformation and ensures long-term performance under high heat
Low Maintenance
The corrosion-resistant properties of Aluzinc significantly reduce the need for frequent repainting or repairs. Its natural silvery spangled finish remains intact for decades with minimal upkeep, saving both time and resources
Versatile Applications
Suitable for both residential and commercial roofing, as well as siding, gutters, and agricultural structures. The material's flexibility allows for easy shaping and customization to meet architectural requirements
Energy Efficiency
Promisteel's Aluzinc roofing reflects solar radiation, helping to reduce heat absorption in buildings. This can lower cooling costs in hot climates and improve overall energy efficiency
Ease of Installation
Promisteel's Aluzinc steel sheets are designed for straightforward installation, supporting various roofing techniques. They can be cut, welded, and formed using standard tools, reducing installation time and complexity
Long Lifespan
With proper installation, Promisteel's Aluzinc roofing can last 25+ years in most environments, offering a cost-effective solution due to its extended service life
Applications of Aluzinc Steel Roofing
Industrial buildings (warehouses, factories)
Residential housing (roofs, garages, extensions)
Commercial buildings (shops, malls, kiosks)
Agricultural infrastructure (barns, storage, poultry farms)
Prefabricated steel structures
Tropical and coastal regions (thanks to corrosion resistance
Cases
✅ Case Study – Philippines
Our 0.40 mm AZ150 Aluzinc corrugated panels were used to roof an entire 10,000m² factory in Manila, withstanding high humidity and typhoon exposure.
✅ Case Study – Africa
Used in large-scale rural development housing projects with heat-reflective coated panels.
✅ Case Study – South America
Aluzinc steel tile roofs for retail complexes that required both function and aesthetics.
Packaging & Logistics
Standard seaworthy export packaging
Each bundle is strapped securely with metal bands
Waterproof wrapping & wooden pallets (optional)
Global shipping available (FOB, CIF, DDP supported)
Why Choose Promisteel?
20
years
20+ years of experience in coated steel production
3
Quality Inspection
Raw material inspection
Coating thickness control
Finished product inspection (offline sampling inspection)
80
COUNTRIES
We export to more than 80 countries around the world
FAQs
Q1: Can I customize the roof sheet profile and color?
Yes! We provide various profile designs and color options based on your project needs.
Q2: Is Aluzinc better than Galvanized steel for roofing?
In most cases, yes-Aluzinc offers better corrosion resistance, heat reflectivity, and lifespan.
Q3: What is the typical lifespan of your roofing sheets?
15–20 years in most environments, longer with proper maintenance.
Q4: Do you provide roofing accessories (ridge caps, flashings, etc.)?
Yes, we supply a full set of accessories.
Q5: Can you ship to my country?
Absolutely! We export globally and can arrange shipping to your nearest port. You can contact our sales manager to confirm
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