High Hardness Color Coated Galvalume Corrugated Steel Roofing Sheets for Durable Roof and Wall Panels

High Hardness Color Coated Galvalume Corrugated Steel Roofing Sheets for Durable Roof and Wall Panels

1．Product Overview

High hardness color coated galvalume corrugated steel roofing sheets are designed for roofing, wall cladding, steel structure buildings, warehouses, workshops, and general building enclosure systems.

The product uses hot dipped galvalume steel as the base material and is coated with an organic paint system. The corrugated profile improves sheet rigidity and drainage performance, while the color coating provides a clean appearance and weather resistance for outdoor use.

2．Technical Solution

The sheet is produced from galvalume steel substrate with 50–180g/m² AZ coating. After surface coating, the material is roll formed into corrugated roofing profiles.

The top surface uses 15–20 micron polyester plus 5 micron primer. The back surface uses 5–7 micron or 7–8 micron polyester plus 5 micron primer.

Available paint systems include PE, SMP, and PVDF. PE is suitable for standard roofing applications, SMP provides improved weather resistance, and PVDF is selected for stronger UV resistance and longer exterior service.

3．Specifications

4．Application

This product is suitable for roofing sheets, wall panels, steel structure buildings, warehouses, workshops, industrial buildings, commercial buildings, and prefabricated structures.

It is commonly used where the final roof or wall panel requires good rigidity, corrosion protection, stable color appearance, and easy installation.

5．Processing

• The sheets can be supplied according to required project length.
• Different effective widths and wave profiles can be arranged according to roofing layout.
• The product supports cutting, stacking, bundling, and export packing.
• Customized RAL colors can be produced according to project requirements.

6．Advantages

• The galvalume substrate provides stable corrosion protection for roofing and wall cladding.
• The 50–180g/m² AZ coating range supports different outdoor exposure environments.
• The corrugated profile improves panel rigidity and roof drainage performance.
• PE, SMP, and PVDF coating systems support different weather resistance requirements.
• Bright or matt surface finish can be selected according to project appearance requirements.
• Standard export packing supports long-distance shipment and construction project supply.

7．How to Choose

• Choose PE coating for standard roofing and wall cladding applications.
• Choose SMP coating when better weather resistance is required.
• Choose PVDF coating for high UV exposure or longer exterior service.
• Choose higher AZ coating levels for humid, coastal, or industrial environments.
• Choose sheet thickness according to roof span, wind load, and required panel rigidity.
• Confirm effective width, length, wave profile, color, and packing method before production.

8．FAQ

Q1．What is this product used for
It is used for roofing sheets, wall cladding, warehouses, workshops, steel structure buildings, and general construction projects.

Q2．What coating systems are available
PE, SMP, and PVDF coating systems are available.

Q3．Can customized RAL colors be supplied
Yes. Colors can be produced according to RAL Card or customer-approved samples.

Q4．What is the available coating range
The available AZ coating range is 50–180g/m².

Q5．Can the wave profile be customized
Yes. Standard wave width is 76mm and wave height is 17mm, and customized profiles can be discussed according to project requirements.