Corrugated Steel Roofing Sheet
Corrugated steel roofing sheets made from GI, GL, PPGI, or PPGL base. Customizable length (up to 11.8m), thickness, and RAL colors. Ideal for roofing, cladding, fencing. High strength and excellent water drainage.
| Material | Roll-Formed Coated Steel Sheet (GI, GL, PPGI, PPGL Base) |
|---|---|
| Grade / Standard | Wave Profile / Sinusoidal Profile |
| Thickness | 0.12mm - 0.80mm |
| Width | Total Width: 762, 914, 1000mm etc. / Effective Width: 665, 840, 900mm etc. |
| Length | 1000mm - 11800mm (or as required, limited by container length) |
| Delivery Condition | hot_rolled / cold_rolled |
| Surface Treatment | galvanized |
| MOQ | 5 Tons |
| Delivery Time | 15-30 Days |
| Loading Port | Tianjin / Shanghai / Qingdao |
Overview of Corrugated Steel Roofing Sheet
Corrugated steel roofing sheet is a classic and highly functional building material, created by roll-forming flat coated steel coils into a wave-like (sinusoidal) profile. This profiling process dramatically increases the strength and rigidity of the sheet, allowing it to span across roof purlins while remaining lightweight. The primary function of the corrugated shape is to provide efficient water drainage, making it an ideal solution for roofing and cladding in a wide range of climates.
The performance and longevity of a corrugated sheet are determined by its base material. It can be manufactured from various substrates, including Galvanized (GI), Galvalume (GL), Prepainted Galvanized (PPGI), and Prepainted Galvalume (PPGL) steel. This versatility allows customers to choose the perfect combination of corrosion resistance, color, and cost for their specific project, from economical agricultural sheds to high-end architectural buildings.
Key Features and Profile Specifications
Corrugated steel sheets are valued for their strength, simplicity, and versatility. Their key features are a direct result of their profile and the choice of base material:
– **Structural Strength:** The wave-like corrugations act as reinforcing ribs, providing excellent strength-to-weight ratio and load-bearing capacity, resisting wind, rain, and snow loads.
– **Material Options:** Customers can select the base material to match their environmental needs and budget: Galvanized (GI) for basic protection, Galvalume (GL) for superior long-term corrosion resistance, and Prepainted (PPGI/PPGL) for a durable, colored finish.
– **Profile Dimensions:** A crucial aspect of a roofing sheet is its width. It is defined by ‘Total Width’ (the full measurement of the flat sheet) and ‘Effective Width’ or ‘Coverage Width’ (the width it covers after lapping with the next sheet). This distinction is critical for calculating the quantity needed for a roof.
– **Customization:** Sheets are cut to custom lengths to fit specific roof dimensions, minimizing on-site cutting and material waste. For PPGI and PPGL versions, a full spectrum of RAL colors is available to meet any aesthetic requirement.
Main Applications of Corrugated Roofing Sheet
The practicality and cost-effectiveness of corrugated steel sheets make them one of the most widely used materials for roofing and cladding worldwide. Their applications are vast and varied:
– **Residential Roofing:** Used for homes, garages, carports, and verandas, offering a durable and low-maintenance alternative to traditional tiles.
– **Commercial & Industrial Buildings:** An ideal roofing and walling solution for warehouses, factories, workshops, and storage facilities due to its rapid installation and long-span capability.
– **Agricultural Buildings:** Extensively used for barns, sheds, poultry houses, and grain storage, providing reliable protection against the elements.
– **Fencing & Barriers:** Corrugated sheets are also used for perimeter fencing, hoardings, and temporary barriers, offering privacy and security.
– **Decorative Applications:** Increasingly used in modern architecture for interior feature walls and exterior aesthetic cladding, providing an industrial-chic look.
Why Choose Us for Corrugated Roofing Sheets
Shandong Tanglu Metal Material Co., Ltd. is a specialist manufacturer of high-quality corrugated steel roofing sheets. We utilize advanced roll-forming lines to produce precise and consistent profiles from premium base coils (GI, GL, PPGI, PPGL). We offer expert guidance to help you select the ideal base material and coating for your climate and application, whether it’s an economical GI sheet for a temporary structure or a PVDF-coated PPGL sheet for a coastal landmark building.
Our quality control ensures that every sheet meets strict tolerances for thickness, width, profile height, and color consistency. We can customize the length of each sheet up to 11.8 meters (to fit a 40ft container), ensuring you order exactly what you need. With extensive experience in securely packaging and exporting long roofing sheets globally, we guarantee your material arrives on-site in perfect condition, ready for installation.
📐 Dimension & Size Table
| Total Width (mm) | Effective Width (mm) | Thickness (mm) | Base Material Options |
|---|---|---|---|
| 762 | 665 | 0.12-0.70 | GI, PPGI |
| 914 | 800 | 0.14-0.80 | GI, PPGI |
| 1000 | 840/900 | 0.14-0.80 | GI, GL, PPGI, PPGL |
| 1200 | 1050 | 0.20-0.80 | GI, GL, PPGI, PPGL |
* Custom sizes available upon request. Tolerances per relevant international standards.
🔬 Chemical Composition
| Element | Min | Max | Display Value | Note |
|---|---|---|---|---|
| Note: | Varies by Base Material | Properties refer to the base steel coil (e.g., DX51D for GI/PPGI, SGLCC for GL/PPGL). Please consult the specific datasheet for the chosen material. | ||
| C (Example: DX51D) | - | 0.12 | ≤0.12 | |
| Mn (Example: DX51D) | - | 0.60 | ≤0.60 | |
| P (Example: DX51D) | - | 0.10 | ≤0.10 | |
| S (Example: DX51D) | - | 0.045 | ≤0.045 |
* Chemical composition may vary by heat, thickness and specification. Please refer to the actual mill test certificate.
⚙️ Mechanical Properties
| Property | Value | Unit | Test Condition |
|---|---|---|---|
| Note | Properties depend on the base coil grade. Common grades for roofing are G300, G550 (High Tensile / Full Hard). | ||
| Tensile Strength (G550) | >550 | MPa | High tensile grade for roofing strength |
| Yield Strength (G550) | ≥550 | MPa | High tensile grade |
| Tensile Strength (Soft) | 270-500 | MPa | Commercial quality grade (DX51D) |
| Zinc Coating (GI) | Z40 - Z275 | g/m² | Determines corrosion resistance |
| Al-Zn Coating (GL) | AZ50 - AZ150 | g/m² | Determines superior corrosion resistance |
* Values shown are minimum requirements unless otherwise stated.
📦 Commercial Information
| Packaging | Standard seaworthy export packing. Sheets are stacked and bundled on wooden or steel skids. The bundle is wrapped with waterproof kraft paper and PE film, with steel edge protectors on all corners. The entire bundle is securely strapped with steel bands. Packaging is designed for safe handling by crane and forklift. Max length is 11.8m for loading into a 40HQ container. |
|---|---|
| Payment Terms | T/T (Telegraphic Transfer),L/C (Letter of Credit) |
| Price Term | FOB,CFR,CIF,EXW |
| Supply Capacity | 50,000 Tons/Month |
| Loading Port | Tianjin / Shanghai / Qingdao |
Why Choose Our Corrugated Steel Roofing Sheet?
High Strength & Lightweight
The corrugated profile provides exceptional rigidity, allowing for long spans between supports while remaining lightweight and easy to handle during installation.
Multiple Material & Color Options
Choose from economical Galvanized (GI), durable Galvalume (GL), or colored PPGI/PPGL finishes in any RAL color to perfectly match your project's needs and aesthetic.
Custom Cut-to-Length
Sheets are manufactured to your exact length specifications, minimizing on-site cutting, reducing installation time, and eliminating material wastage.
Excellent Weather Resistance
The proven wave profile design efficiently channels rainwater, while the underlying zinc or Al-Zn coating provides long-lasting protection against rust and corrosion.
Cost-Effective & Rapid Installation
Large sheet sizes cover areas quickly, reducing labor costs and construction time compared to traditional roofing materials like tiles or shingles.
🏭 Applications of Corrugated Steel Roofing Sheet
Corrugated steel roofing sheets are a versatile and economical solution for a multitude of covering needs. They are the quintessential choice for roofing and wall cladding on agricultural buildings, such as barns and sheds, as well as on large industrial warehouses and factories. In residential construction, they provide a durable and stylish option for homes, garages, and patios. Their use also extends to practical applications like site fencing, hoardings, and temporary enclosures, demonstrating their incredible adaptability.
📋 Quality & Certification
Our Certifications
- ✅ ISO 9001:2015
- ✅ CE Marking
- ✅ ABS
- ✅ DNV GL
- ✅ Lloyd's Register (LR)
- ✅ Bureau Veritas (BV)
- ✅ SGS Certified
- ✅ NK
- ✅ RINA
Mill Certificate Type
- 📋 EN 10204 3.1
- 📋 EN 10204 3.2
- 📋 Original Mill Certificate
- 📋 Third Party Inspection Available
- 📋 Certificate of Origin
❓ Frequently Asked Questions
What is a corrugated steel roofing sheet?
It is a sheet of steel that has been roll-formed into a wave-like or 'corrugated' pattern. This shape adds strength and is ideal for shedding water. The steel itself is coated for protection, usually with zinc (Galvanized), an aluminum-zinc alloy (Galvalume), or a factory-applied paint system (PPGI/PPGL).
What is the difference between total width and effective width?
Total width is the full measurement of the sheet from edge to edge. Effective width (or coverage width) is the actual surface area the sheet will cover after it is installed and overlapped with the next sheet. Effective width is the critical measurement for calculating how many sheets you need for your roof.
Which base material should I choose: GI, GL, PPGI, or PPGL?
It depends on your budget and environment:
- **GI (Galvanized):** Most economical, good for dry, inland areas and general-purpose use.
- **GL (Galvalume):** Superior corrosion resistance, lasts 2-4 times longer than GI. Recommended for most roofing applications.
- **PPGI (Prepainted GI):** Adds color to a galvanized base. Good for aesthetics in moderate environments.
- **PPGL (Prepainted GL):** The premium choice. Combines the superior durability of Galvalume with a high-performance paint finish. Ideal for coastal areas, harsh industrial zones, and long-life architectural projects.
What is the maximum length I can order?
We can produce sheets to almost any practical length. However, for shipping in standard sea containers, the maximum length is typically 5.8 meters for a 20ft container (20GP) and 11.8 meters for a 40ft High-Cube container (40HQ). Ordering lengths that fit within these limits will be the most cost-effective for shipping.
What thickness do I need for my roof?
This depends on the distance between your roof supports (purlins) and your local weather conditions (wind/snow load). A common thickness for residential and light commercial use is 0.40mm - 0.50mm. Thinner gauges (0.12-0.30mm) may be used for fencing or walling, while thicker gauges (0.60-0.80mm) might be needed for very long spans or areas with heavy snow.
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Corrugated Steel Roofing Sheet
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