SGCC Corrugated Galvanized Roofing Sheet with 60–275g/m² Zinc Coating and 76mm

1. Product Overview

SGCC corrugated galvanized roofing sheet is widely used in industrial buildings, warehouses, workshops, and civil construction where corrosion resistance, lightweight installation, and practical service life are required. The hot dipped zinc coating protects the steel substrate from atmospheric exposure, while the corrugated profile increases stiffness compared with flat sheet.

For roof and wall systems, the combination of zinc coating, profile geometry, and sheet thickness directly affects installation stability, drainage performance, and outdoor durability. This is why corrugated galvanized sheet remains a common option for standard building enclosures.

2. Technical Solution

Product performance is based on:

• Hot dip galvanized coating for barrier protection and sacrificial protection
• Corrugated profile improving stiffness and drainage performance
• 76 mm wave width and 17–17.5 mm wave height for practical roof and wall use
• SGCC substrate suitable for continuous corrugation forming
• Regular or minimized spangle according to appearance requirement

In roofing applications, zinc coating level affects service life, while thickness affects rigidity, wind resistance, and handling during installation. Effective width also influences project coverage and overlap efficiency.

3. Specifications

4. Application

• Industrial and civil building roofing
• Warehouse and workshop wall cladding
• Steel structure housing panels
• Ceiling and fence panels
• Mobile house and light enclosure panels
• General roof and wall sheet systems

5. Processing

• Hot dip galvanized base sheet preparation
• Corrugation roll forming
• Cut-to-length production
• Roof and wall panel overlap installation
• Fastener fixing on purlins or support members
• On-site trimming according to layout requirements

6. Advantages

• 60–275 g/m² zinc coating range supports different outdoor conditions
• Corrugated profile improves stiffness without heavy sheet weight
• Multiple effective widths help match different roof layouts
• SGCC material is suitable for standard corrugated sheet production
• Regular or minimized spangle can be selected by appearance requirement
• Suitable for both roof and wall applications in industrial and civil buildings

7. How to Choose

• General roofing use → SGCC with medium coating is commonly selected
• More exposed outdoor environment → higher coating such as Z180–Z275 is usually preferred
• Visible galvanized appearance → regular spangle is commonly used
• Cleaner surface preference → minimized spangle is often selected
• Project-based installation → confirm effective width and cut length before production

8. FAQ

Q1: What zinc coating is commonly used for corrugated roofing sheet?
For general roofing use, coating levels from Z120 to Z275 are commonly selected depending on service environment and expected life.

Q2: Why is effective width different from the original sheet width?
Because part of the sheet width is consumed by the corrugated profile and side overlap during installation.

Q3: Is SGCC suitable for roofing and wall cladding?
Yes, SGCC is widely used for galvanized corrugated roof and wall sheet production.

Q4: Can the sheet length be customized?
Yes, corrugated galvanized sheets are commonly produced in project-based lengths within the processing range.

Q5: What is the function of the 76 mm wave width and 17–17.5 mm wave height?
These profile dimensions help improve drainage, panel stiffness, and installation stability in roof and wall systems.