What is Galvanized Steel Roofing Sheet

GI roof sheet is short for galvanized steel roof sheet. It is profiled with galvanized steel sheet for roofing purposes, which has been coated with zinc. The zinc coating provides the base steel protection from moisture and oxygen. According to the galvanizing process, it can be divided into hot-dip galvanized and electro-galvanized steel sheets.

The corrugated design will improve its strength so that it can withstand harsh weather conditions. The common design includes wavy shape, trapezoidal design, ribbed galvanized roof sheets, etc. It can be used as a single-layer sheet, cladding over an existing roof, or steel sandwich panels.

Galvanized Steel Roof Sheet Production Process

1. Hot-dip galvanized roofing sheet

Production process: Immerse the thin steel sheet in a molten zinc tank to make a layer of zinc adhere to its surface. At present, the continuous galvanizing process is mainly used for production, that is, the rolled steel sheet is continuously immersed in a molten zinc plating tank to make a galvanized steel sheet.

Features: Hot-dip galvanized roofing sheet has good corrosion resistance and long service life, and is suitable for a variety of climate and environmental conditions.

2. Electrogalvanized roofing sheet

Production process: It is manufactured by electroplating.

Features: Electrogalvanized roofing sheet has good processability, but the coating is relatively thin and the corrosion resistance may not be as good as hot-dip galvanized roofing sheet. However, its price is relatively low and it is suitable for construction projects with limited budgets.

Advantages of Galvanized Steel Roof Sheets

1.Anti-corrosion and durability: The surface of the galvanized steel sheet is coated with a layer of zinc, which can effectively resist the erosion of factors such as oxidation and water corrosion, thereby greatly extending the service life of the roof sheet.

2.Lightweight and high strength: The galvanized roof sheet is light in weight, high in strength, and easy to build and transport. This not only reduces the burden on the building structure, but also improves the overall stability and safety of the building.

3.Easy maintenance: The surface of the galvanized roof sheet is flat and smooth, and it is not easy to deposit dust, dirt and other substances, so it is relatively easy to maintain. Regular cleaning can maintain its finish and beauty.

4.Economical and practical: While ensuring quality, the galvanized roof sheet also has a high cost-effectiveness. Its long service life and low maintenance cost make it more economical in long-term applications.

Quality Control

We have our own Physical & Chemical Testing Center Lab to guarantee our product quality. Our test items & instrument fully meet international standards.

Applications of Galvanized Steel Roof Sheets

1. Industrial building field

Steel structure factory: Galvanized roof sheet is a common roof material for steel structure factory. Its corrosion resistance and durability enable it to be used for a long time in harsh industrial environments.

Warehouse: Warehouses usually require a large area of roof covering. Galvanized roof sheet not only meets this demand, but also provides good waterproof performance to ensure that the items in the warehouse are not eroded by rain.

Workshop: Whether it is a single-sided color steel plate steel structure workshop or a multi-span steel structure workshop, galvanized roof sheet can provide solid roof protection while meeting the needs of beauty and practicality.

2. Civil building field

Villa: Galvanized roof sheet is widely used in villa buildings. Its unique metal texture and beautiful appearance can enhance the overall quality of the villa.

Residential: In ordinary residential buildings, galvanized roof sheet is also often used as a roof material, providing effective waterproof and thermal insulation performance to ensure the comfort and safety of the residence.

3. Public facilities field

Station: As a place with dense traffic, the roof of the station needs to withstand large loads and wind and rain erosion. Galvanized roof sheet is an ideal choice for station roofs due to its high strength and corrosion resistance.

Airport: Airport terminals and other buildings usually have large spans, requiring lightweight and high-strength roofing materials. Galvanized roof panels not only meet this demand, but also provide beautiful appearance and long service life.

Large exhibition centers and stadiums: These buildings usually have complex structures and large areas, and have high requirements for roofing materials. Galvanized roof panels have become the preferred material for the roofs of these buildings due to their good processing performance and corrosion resistance.

4. Special environmental scenes

Seaside: The seaside environment is humid and has high salt content, which is highly corrosive to roofing materials. Galvanized roof panels can be used for a long time in the seaside environment without damage due to their excellent corrosion resistance.

Chemical plants: Chemical plants usually have a large amount of corrosive gases and liquids, and have extremely high requirements for the corrosion resistance of roofing materials. Galvanized roof panels can meet this demand and ensure the safety and stability of the roofs of chemical plants.

Product Inventory

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