Heavy Duty Zinc Coated Corrugated Steel Roof Sheets for Industrial and

Product Specification

Heavy Duty Zinc Coated Corrugated Steel Roof Sheets for Industrial and Commercial Roofing

1．Product Overview

Heavy duty corrugated steel roof sheets are designed for industrial roofing, commercial buildings, warehouses, workshops, container structures, and outdoor construction projects requiring stable corrosion resistance and structural rigidity.

The sheets are manufactured from hot dipped galvalume steel substrate combined with organic color coating systems. The corrugated profile improves load distribution and drainage performance while maintaining lightweight roof construction.

The product is suitable for both roofing and wall cladding systems where long-term outdoor durability and consistent appearance are required.

2．Technical Solution

The roofing sheets use hot dipped galvalume steel substrate conforming to JIS G3322, ASTM A792, and EN 10169 standards.

The AZ coating range of 50–180g/m² provides corrosion protection for outdoor service environments. The surface paint system includes polyester primer and finish coating to improve UV resistance and surface durability.

Top coating structure:
15–20 micron polyester + 5 micron primer

Back coating structure:
5–7 micron or 7–8 micron polyester + 5 micron primer

Different paint systems including PE, SMP, PVC, and PVDF can be selected according to project environment and weather exposure requirements.

3．Specifications

4．Application

These corrugated roofing sheets are widely used in:

• Industrial workshops
• Warehouses
• Airport buildings
• Steel structure roofing
• Commercial roofing systems
• Residential roofing projects
• Container buildings
• Wall cladding systems
• Agricultural buildings
• Mechanical and electrical equipment enclosures

5．Processing

• The sheets can be supplied in customized lengths according to roofing layout requirements.
• Different corrugated profiles, effective widths, wave heights, and colors can be arranged according to project specifications.
• Cutting, slitting, and protective film options are available for construction and fabrication applications.

6．Advantages

• Stable outdoor corrosion resistance with AZ coating
• Corrugated profile improves rigidity and drainage performance
• Multiple coating systems available for different climates
• Bright and matt surface finishes available
• Lightweight roofing solution for fast installation
• Suitable for industrial, commercial, and residential applications
• Wide thickness range for different structural requirements
• Customized RAL colors supported

7．How to Choose

• Choose PE coating for standard commercial roofing applications.
• Choose SMP or PVDF coating for stronger UV resistance and long-term exterior exposure.
• Select higher AZ coating levels for coastal or humid environments.
• Choose thicker sheets for higher wind load or larger roof spans.
• Confirm effective width and corrugated profile according to roof design before production.

8．FAQ

Q1．What is the main application of corrugated steel roof sheets
They are mainly used for roofing and wall cladding in industrial, commercial, and residential buildings.

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

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

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

Q5．Can customized roofing profiles be produced
Yes. Wave width, wave height, effective width, and sheet length can be customized according to project requirements.