Corrugated Roofing Sheet

Corrugated roofing sheets—also known as corrugated color-coated steel sheets or profiled roofing panels—are manufactured by taking color-coated, galvanized, or galvalume (aluminum-zinc coated) steel coils and subjecting them to continuous cold-roll forming. This process shapes the material into a continuous, wave-like cross-section. The primary advantage of this design is that, while flat steel coils possess limited inherent rigidity, the corrugated profile significantly increases the cross-sectional moment of inertia. This provides the load-bearing capacity and drainage performance required for roofing applications.

Item	Parameter
Material Thickness	0.15 mm – 1.2 mm (typically 0.3–0.6 mm)
Common Profile Types	water wave, IBR, Glazed tiles
Effective Width	Typically 750 / 820 / 840 / 900 / 1025 mm
Unfolded Width	Usually 1000 mm or 1200 mm (depending on the profile type)
Length	Customized based on project requirements and transportation constraints
Wave Height	Typically 15–35 mm (depending on the profile type)

Typical Applications

1. Roofing：This is the primary application for corrugated metal sheets. They are suitable for the roofs of industrial plants, warehouses, logistics parks, and temporary structures. Options include pre-painted materials (available in various colors) or galvanized/galvalume-coated materials (offering a silver-white metallic appearance), which can be selected based on specific project requirements for aesthetics and weather resistance.
2. Fencing and Enclosures： These sheets are commonly used for construction site hoarding and temporary partitions. The corrugated profile provides a degree of visual screening. Pre-painted versions are available in standard colors—such as blue, gray, or white—eliminating the need for additional on-site painting.
3. Decorative Use： These sheets can be used for decorative wall cladding, partitions, canopies, and other applications where a corrugated metal aesthetic is desired.

Raw Material Selection Guide 

Material Type	Weather Resistance Level	Typical Applications
Galvanized Steel Coil (GI)	Economical	General-purpose hoarding/fencing, roofing for temporary structures, and applications with low weather-resistance requirements.
Galvalume Steel Coil (GL)	Mid-to-High End	Roofing and hoarding/fencing requiring superior corrosion resistance; suitable for coastal areas or environments with high pollution levels.
Pre-painted Steel Coil (PPGI/PPGL)	Varies by Coating Type	Roofing, hoarding/fencing, and decorative panels requiring specific colors; PVDF coatings are recommended for applications demanding high weather resistance.