Blue corrugated roofing sheets, made from PPGI/PPGL as the base material and processed through color coating and profiling, are widely used in overseas factories, warehouses, building roofs, and exterior walls. Wanzhi Group can customize metal roofing and wall panels in various sizes, shapes, coatings, and colors to suit different climates and architectural scenarios worldwide.
Substrate: PPGI/PPGl
Paint: PE, SMP, PVDF, HDP
Shapes: ribbed, wavy, trapezoidal, and more.
Blue Corrugated Roofing Sheets Specification
| Item | Details |
| Base Material | PPGI / PPGL |
| Thickness | 0.15mm-0.8mm |
| Width | 600-1,250mm |
| Length | Customizable as client requirements |
| Coating | PE, SMP, PVDF, HDP |
| Surface Treatment | Color coated / Smooth / Embossed |
| Wave Height | 18-50 mm |
| Wave Distance | 76-250 mm |
| Standard | GB, ASTM, JIS, EN |
Structure of Blue Corrugated Roofing Sheets
Blue corrugated roofing sheets are primarily composed of two layers: the substrate and the coating. This dual-layer structure ensures strength, corrosion resistance, and long-lasting appearance.
Substrate
- PPGI: The galvanized surface coating prevents oxidation and rusting of the steel plate. It is easy to shape into various profiles and provides reliable basic rust resistance, making it suitable for long-term outdoor use.
- PPGL: The aluminum-zinc alloy coated surface offers high structural strength, excellent corrosion resistance, and superior heat tolerance, making it ideal for challenging outdoor environments.
Coating
- Primer Layer: Typically an epoxy primer that adheres strongly, blocks moisture, prevents substrate corrosion, and enhances the bond with the topcoat.
- Topcoat Layer: Commonly made of PE, SMP, HDP, or PVDF coatings, providing an even blue finish with excellent color retention, UV resistance, scratch resistance, and aging durability.
- Back Coat Layer: Polyester back coating protects the reverse side from oxidation, and extends the overall lifespan of the panel.
Production Process
- Raw Material Loading: PPGI/PPGL color-coated steel coils are fed into the production line.
- Surface Pretreatment: Degreasing, cleaning, and drying ensure the substrate is clean.
- Roll Forming: Steel is rolled into standard corrugated profiles using a roll forming machine.
- Cutting to Length: Panels are automatically cut to the required sizes.
- Product Inspection: Dimensions, appearance, coating, and flatness are checked.
- Packaging and Storage: Sheets are film-wrapped and bundled, and preparedfor warehousing and shipment.
Applications
- Industrial factory roofs and walls
- Warehouses, logistics centers, construction site fences, and courtyard partitions
- Poultry houses, grain silos, pigsties, greenhouses, and livestock shelters
- Office building exteriors and commercial shop roofs
- Temporary sheds, storage facilities, and exhibition structures
- Temporary municipal fences, partitions, and backing panels for outdoor billboards, etc.
Advantages of Blue Corrugated Sheets
- High Durability: PPGI/PPGL materials combined with high-quality coatings provide a lifespan of 15-30 years, reducing maintenance costs.
- Aesthetic and Easy to Install: Available in multiple colors and sizes to meet diverse architectural design needs.
- Lightweight and Safe: Weighing only 3-8 kg per square meter, it reduces building load. The corrugated structure enhances stability, providing resistance to compression, wind, and snow—suitable for extreme weather conditions.
- Corrosion and Waterproof: Corrugated overlaps with specialized sealing accessories ensure smooth drainage without water accumulation. The metal material is water-resistant, mold-proof, and rot-resistant, making it ideal for rainy and humid regions.
- Efficient Construction: Standardized sizes make cutting, joining, and fixing simple, saving labor and time costs.
- Eco-Friendly: Classic blue finish, 100% recyclable, compliant with international environmental standards, free of formaldehyde, radiation, and other hazards.
Custom Services
Wanzhi Group has extensive metal production capabilities, including color-coated steel and stainless steel, along with professional forming equipment. We can customize corrugated roofing sheets in various sizes and shapes to meet diverse architectural needs.
Purchase Recommendations
When selecting corrugated roofing panels, consider the following:
Substrate Thickness and Strength: Choose the appropriate steel thickness based on building span and wind load requirements.
Coating Type: Polyester coatings are suitable for general environments, while fluorocarbon coatings perform better in high temperatures, coastal areas, or industrial zones.
Corrugation Profile: Select wave height and pitch that meet both aesthetic and structural requirements.
Environmental Certification: Ensure the product meets recycling and environmental standards.
Packaging
Most exported steel sheets use standard export packaging. Wanzhi’s export packages typically includes plastic film, moisture-proof paper, galvanized sheets, and steel straps. Standard packaging features the Wanzhi logo, and customers can choose whether to display the company branding.
PPGI & PPGL Metal Corrugated Sheets Manufacturer – Wanzhi
Wanzhi Steel operates three color-coated steel production lines, two galvanized steel lines, and one aluminum-magnesium alloy line. We supply raw materials to corrugated sheet manufacturers worldwide and provide finished corrugated metal panels and accessories to project developers and distributors, helping all types of buildings achieve both long-lasting durability and aesthetic functionality.
Corrugated Sheet Pricing
The price of Wanzhi PPGI/PPGL corrugated sheets depends on factors such as base material type, coating thickness, surface finish and treatment, order quantity, and customization requirements, etc. For specific needs, please contact us—Wanzhi will provide an accurate, tailored quotation.
Factory
Wanzhi Group is an ISO-certified coated steel supplier in China, producing and selling stainless steel, galvanized steel, and color-coated steel. Our products meet international standards including GB, JIS, and EN. Equipped with a sample room, laboratory, and complete production lines, we offer one-stop services from samples and design to production, catering to customers worldwide.
Global Projects
Wanzhi Group’s corrugated metal sheets and raw materials have been exported to over 120 countries and regions, including Peru, Chile, Colombia, Indonesia, Malaysia, Singapore, Vietnam, Saudi Arabia, and the United Arab Emirates.
Wanzhi Steel – Agricultural Greenhouse Project in Turkmenistan
550 tons PPGI Steel Coil to Azerbaijan
100 tons of Galvanized Coils to Saudi Arabia
144 ton Steel Wire to Spanish
Project of PPGI Roofing en Libya
100 tons of GL and PPGL in Solomon Islands
Customer Feedback
Looking to customize Wanzhi PPGI, PPGL, GI, or GL corrugated sheets? Send your drawings to our email, and we will provide a tailored project solution. Feel free to contact us for inquiries.