


Trapezoidal AZ150 Corrugated Aluzinc Roofing Sheet for Roofing Panels
Aluzinc roofing sheets are produced with 55% Al-Zn coating for construction projects. Witop provides reliable bulk supply.
Superior Corrosion Resistance; Excellent Heat Reflectivity; High Structural Strength; Long-Term Weather Durability; Reliable Bulk Supply & Export Support
Aluzinc Roofing Sheet Technical Sheet
| Hot Dipped Galvalume Corrugated Roofing Sheet | |
| Standard | JISย G3321, ENย 10215, ASTMย 792 |
| Grade | SGLCC, SGLCH |
| DX51D+AZ,DX52D+AZ | |
| G300 G500 | |
| Type | Wave-Shape and Trapezoid-Shape |
| Alu-zinc Composition | 55%ย Aluminum, 43.5% Zinc,1.5% Silicon |
| Alu-zincย Coating | 40-150G/M2 |
| Surfaceย Treatment | No Anti-Finger Print, Anti-Finger Print |
| Thickness | 0.12-0.8MM |
| Width before Corrugated (BC) | 762MM, 900MM, 914MM, 1000MM,ย 1200MM |
| Width after Corrugated (AC) | 665MM, 680MM, 800MM, 836MM, 850MM, 870MM, 875MM, 900MM,ย 1100MM |
| Bundleย Weight | 3-4MT/Bundleย orย Customized |
| Package | Standard Seaworthyย Exportingย Packing |
| MOQ | 25MT |
| Capacity | 5000MT/Month |
| Transportย Type | Vessel Container, Vessel Bulkย ,Railway Container, |
| Railway Wagon | |
| Loadingย Port | Tianjin,ย Qingdao, Ningbo, Shanghai and other port |
| Deliveryย Time | 20-25ย Daysย afterย receiving the deposit |
| Terms of Trade | EXW,FOB,ย CFR,ย CIF |
Aluzinc Roofing Sheet Description
Aluzinc Roofing Sheet Description highlights 55% Al-Zn coated metal panels engineered for superior corrosion resistance in roofing and cladding applications. As a professional manufacturer and bulk supplier, we provide sheets with AZ30โAZ150 coating, thickness from 0.12โ0.8mm and customizable lengths to match different building requirements.
Compared with galvanized roofing sheets, Aluzinc roofing sheets offer longer service life in coastal and high-humidity environments. Widely used by contractors, distributors and construction companies, our Galvalume roof panels help reduce maintenance costs, improve durability and ensure reliable long-term supply for industrial and residential projects.
Aluzinc Roofing Sheet Applications
Coastal & Marine Area Roofing
Aluzinc roofing sheets are widely used in coastal cities and island projects where salt spray corrosion is severe. The Al-Zn alloy coating significantly extends service life compared with standard galvanized roofing sheets.
Industrial & Factory Buildings
Ideal for warehouses, workshops and logistics centers that require long-term durability and reduced maintenance costs.
High-Temperature Climate Construction
The aluminum-rich substrate improves heat reflectivity, making it suitable for roofing systems in tropical and desert regions.
Agricultural & Livestock Facilities
In environments exposed to humidity, fertilizers and chemicals, Aluzinc roof sheets offer better corrosion resistance and structural stability.
Infrastructure & Public Projects
Applied in schools, bus stations, parking sheds and public buildings where long service life and cost efficiency are priorities.
Wall Cladding & Exterior Systems
Besides roofing, Aluzinc sheets are also used for wall panels and exterior facades requiring weather resistance.
Steel Roofing Sheet Process Flow Chart

1. Uncoiler
2. Feeding Table
3. Roll Froming System
4. Safety Fence
5. Post-Cutting
6. Finished Product Output Supporter
Standard Export Package

Covered with a layer of inside anti-water craft paper, middle PVC plastic film and outside 0.45mm thick steel sheet, packed on the iron pallets, bound with iron belt strip.
WITOP steel can pack steel roofing sheet based on customerโs requirement.

FAQ โ Aluzinc Roofing Sheet
Aluzinc steel roofing sheet is a roofing material made from Aluzinc (Galvalume) steel, which is coated with an aluminum-zinc alloy layer through a hot-dip process. The coating contains 55% aluminum, 43.4% zinc, and 1.6% silicon, providing excellent corrosion resistance and long service life.
Aluzinc roofing sheets are widely used in industrial buildings and warehouses, residential roofing systems, agricultural buildings, commercial structures, prefabricated houses, and steel structure buildings. They are commonly used in modern roofing and wall cladding systems.
Galvanized Roofing Sheets use a zinc coating and offer a lower cost. Aluzinc Roofing Sheets use an aluminum-zinc alloy, providing better corrosion resistance and heat reflection. Aluzinc roofing sheets can last 2โ4 times longer than galvanized roofing sheets in many environments.
Typical thickness ranges include:
0.12 โ 0.18 mm: Lightweight roofing
0.20 โ 0.30 mm: Standard roofing sheets
0.35 โ 0.50 mm: Industrial roofing
0.50 โ 0.80 mm: Heavy-duty roofing panels
Thickness selection depends on building structure and load requirements.
Common coating weights include AZ50 for indoor or mild environments, AZ100 for standard roofing, and AZ150 for high corrosion resistance roofing. AZ150 is the most commonly used coating for long-life roofing.
Common roofing sheet profiles include corrugated roofing sheets, trapezoidal roofing sheets, IBR roofing sheets, and tile profile roofing sheets. The profile can be customized according to roofing machine design and regional market standards.
Key advantages include excellent corrosion resistance, high heat reflectivity, long service life, lightweight material, easy installation, and low maintenance cost. These features make Aluzinc roofing sheets ideal for large industrial roofing systems.
Yes. Aluzinc roofing sheets can be painted to produce color coated roofing sheets (PPGL roofing sheets). This improves aesthetics and provides additional weather protection.
The lifespan depends on coating weight and environment. Typical service life includes 25โ40 years in rural environments, 20โ30 years in industrial areas, and 15โ25 years in coastal environments. Higher coating weights improve corrosion resistance.
Common sheet widths and their effective coverage include:
914 mm coil width: ~760โ820 mm effective width
1000 mm coil width: ~840โ900 mm effective width
1200 mm coil width: ~1000โ1050 mm effective width
Actual effective width depends on the specific roofing sheet profile design.
Major buyers include roofing sheet manufacturers, construction companies, building material distributors, steel structure contractors, and prefabricated building manufacturers. Bulk orders usually range from 20 to 200 tons per order.
Common international standards include ASTM A792 / A792M, EN 10346, JIS G3321, and GB/T 14978. These standards define coating weight, mechanical properties, and tolerances.
Aluzinc roofing sheets use Galvalume steel and have a natural metallic surface. PPGI roofing sheets use galvanized steel and have a color coated surface. PPGL roofing sheets combine an Aluzinc base steel with a paint coating.
Standard export packaging includes waterproof paper protection, plastic film covering, steel strapping, and wooden pallets. Proper packaging prevents moisture damage and sheet deformation during shipping.
Key factors include stable aluminum-zinc coating quality, accurate sheet thickness, consistent roofing profile quality, strong production capacity, reliable export packaging, and stable bulk supply. Most international buyers prefer direct manufacturers with roofing production experience.



