AS 1397 G550 Corrugated Galvanized Roofing Sheet with 1050mm Effective Width for Industrial Roof and Wall Systems

1.Product Overview

Corrugated galvanized roofing sheet is widely used in industrial buildings, warehouses, workshops, and light steel structure projects where low weight, corrosion resistance, and fast installation are required. The corrugated profile improves sheet stiffness, while the zinc coating helps protect the substrate from atmospheric exposure during service.

For projects using AS 1397 G550 or similar high-hardness grades, the material is commonly selected for roofing and wall systems that require better profile retention after roll forming. Effective width options such as 1050 mm are also practical for standardized roof layouts and site installation efficiency.

2.Technical Solution

Product performance is based on:

• Hot dip galvanized coating for barrier protection and sacrificial protection
• Corrugated profile improving rigidity compared with flat sheet
• G550 hardness level supporting profile stability after forming
• Wave geometry designed for rainwater drainage and installation overlap
• Cut-to-length production matched to project-based roof and wall layout

In roofing applications, sheet thickness, coating mass, and substrate hardness work together. Thickness affects stiffness and handling, zinc coating affects corrosion resistance, and full hard material helps maintain profile shape in long roof runs and exposed wall cladding.

3.Specifications

4.Application

• Industrial roofing sheets
• Warehouse and workshop wall panels
• Large-span steel structure buildings
• Ceiling and fence panels
• Mobile house and light steel building sheets
• Container-related corrugated sheet applications

5.Processing

• Hot dip galvanized base sheet preparation
• Corrugation roll forming
• Cut-to-length production
• Panel overlap installation on roof and wall systems
• Fastener fixing on purlin or support structure
• Site trimming according to project layout

6.Advantages

• G550 full hard grade helps maintain corrugated profile shape
• 40–275 g/m² zinc coating range supports different service environments
• 1050 mm effective width is suitable for standardized roofing layouts
• Corrugated profile improves drainage and installation practicality
• Lightweight sheet reduces transport and site handling load
• Suitable for both industrial buildings and light steel construction systems

7.How to Choose

• Industrial roof projects with longer spans → full hard grade such as G550 is commonly selected
• General outdoor roofing → higher coating such as Z180–Z275 is usually preferred
• Wall or visible cladding applications → choose spangle based on appearance requirement
• Projects with fixed roof module → confirm effective width before production
• Higher wind or handling requirement → choose suitable thickness according to support spacing and design load

8.FAQ

Q1: Why is G550 commonly used for corrugated roofing sheet?
Because higher hardness helps the sheet keep its corrugated shape after roll forming and improves profile rigidity in roofing applications.

Q2: What is the difference between effective width and actual sheet width?
Effective width is the usable installed cover width after side overlap, while actual sheet width is larger before installation.

Q3: Is 40 g/m² coating suitable for all roofing projects?
Not always. It may be used in some controlled or less demanding environments, but higher coating levels are commonly selected for stronger outdoor corrosion resistance.

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

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