For durable and cost-effective roofing solutions, the GI Corrugated Roofing Sheet is a premier choice for industrial, agricultural, and residential projects worldwide. This product is a hot-dip galvanized steel sheet formed into a classic corrugated profile, providing exceptional strength, weather resistance, and longevity. The zinc coating protects the base steel from corrosion, making these galvanized corrugated sheets ideal for harsh climates. At ChinaCNU Steel, with over 15 years of expertise, we export high-quality GI roof sheets directly from our Qingdao factory to over 50 countries, offering competitive GI roof sheet price points and reliable supply for major markets like Africa, the Middle East, and Southeast Asia.
Product Specifications
Our GI Corrugated Roofing Sheets are manufactured to precise standards, ensuring consistent quality and performance for your construction needs. Below are the detailed specifications.
| Grade | Thickness (mm) | Width (mm) | Zinc Coating (g/m²) | Standard |
|---|---|---|---|---|
| DX51D, SGCC | 0.12 – 0.70 | 600 – 1250 | 60 – 275 | ASTM A653, JIS G3302, EN 10346 |
| Q195, Q235 | 0.15 – 0.80 | 750 – 1200 | 80 – 180 | GB/T 2518 |
Applications
The versatility of galvanized corrugated sheet makes it suitable for a wide range of structural and cladding applications across multiple sectors.
- Industrial & Warehouse Roofing: Primary roofing and wall cladding for factories, workshops, and storage facilities.
- Agricultural Buildings: Ideal for barns, poultry sheds, grain storage, and greenhouse structures.
- Residential Roofing: A popular choice for affordable housing, extensions, and outbuildings, especially for zinc roofing Africa projects.
- Commercial Complexes: Used in markets, shopping centers, and airport hangers for durable coverage.
- Fencing & Partitions: Serves as robust fencing panels and interior partitions.
- Disaster Relief Shelters: Quickly deployable and durable roofing for temporary housing.
Why Choose ChinaCNU Steel
Selecting the right supplier is critical for your project’s success. Here’s why global buyers trust ChinaCNU for their GI corrugated sheet needs.
- Direct Factory Source: We are a manufacturer in Qingdao, ensuring strict quality control and competitive pricing without middleman markups.
- Proven Export Experience: With 15+ years specializing in exporting steel, we understand international logistics and documentation for 80+ countries.
- Quality Certifications: Our production is ISO 9001 certified, with materials SGS inspected upon request, guaranteeing product compliance.
- Flexible MOQ & Lead Time: We accommodate projects of all scales with a minimum order quantity of 25 tons and a reliable lead time of 15-25 days.
- Secure Packing: Sheets are bundled with waterproof wrapping and secured with steel straps on wooden pallets to prevent transit damage.
- Simple Payment & Support: We accept T/T and L/C payments and provide dedicated English-speaking support from inquiry to delivery.
PPGI/GI Pricing
Our pricing for GI Corrugated Roofing Sheets is based on current raw material costs and your specific requirements for grade, coating, and quantity. We offer FOB Tianjin pricing, which provides clarity on costs up to the port of shipment. For the most accurate and competitive GI roof sheet price, we provide free, no-obligation quotes tailored to your project specifications. Contact us with your detailed needs for a comprehensive price breakdown delivered within 24 hours.
FAQ
What is the typical lifespan of a GI corrugated roofing sheet in coastal areas?
The lifespan of a galvanized corrugated sheet in coastal, high-salinity environments depends heavily on the zinc coating weight. Sheets with a heavier coating (e.g., 180 g/m² or higher) can last 20-30 years with proper installation, as the zinc provides sacrificial protection against salt-induced corrosion, making it a preferred material for long-term zinc roofing Africa projects.
Can I paint or color these galvanized corrugated sheets?
Yes, GI sheets can be painted after a proper surface preparation process to ensure paint adhesion. For a pre-finished option, you may consider our PPGI (Pre-Painted Galvanized Iron) sheets, which come with a durable color coating applied at the factory, offering enhanced aesthetics and additional protection against weathering.
What is the best zinc coating thickness for heavy rainfall regions?
For regions with heavy rainfall and high humidity, we recommend a medium to high zinc coating between 120 g/m² and 180 g/m². This ensures a robust barrier against constant moisture, preventing rust and extending the roof’s service life, which is a crucial consideration for durable galvanized corrugated sheet installations.
How do I calculate the number of sheets needed for my roof?
To calculate the quantity, you need the total roof area and the effective covering width of the sheet (which is less than the total width due to side laps). Our technical team can assist you with this calculation. Providing your roof dimensions allows us to give you an accurate material estimate and the most efficient GI roof sheet price for your total project volume.
Get Factory Price for GI Corrugated Roofing Sheet
Send us your specs and get a free FOB Tianjin quote within 24 hours.