What is a tole? How do we distinguish common types of galvanized sheets?

What is a tole? What types are there? This is an interesting question for many customers. For those working in the construction and engineering industry, the corrugated sheet is no longer a strange material. However, not all users know its Vietnamese name. This causes many misunderstandings and difficulties when purchasing. Are you curious? See the answer in Bao Tin Steel’s article!

What is a tole?

Tole is the English name for corrugated sheet (roofing sheet). This is a material made from thin rolled metal sheets commonly used for roofing. Tole is sometimes understood as steel plate, rolled steel plate, steel sheet, steel strip, etc.

From the above concept, we can see that the tole is a galvanized sheet. The use of the name galvanized sheet or corrugated sheet depends on each person’s habits. If someone asks you, “What is atole?”  you can completely confirm that it is a galvanized sheet.

Tôn là gì?
Actual image of galvanized sheet – Source: Internet
Normally, a galvanized sheet is made of steel, aluminum, or zinc. To increase the durability and rust resistance of corrugated iron, people often add another layer of alloy such as zinc, aluminum, or silicon.
Currently, there are many types of galvanized sheets being sold on the market. Including cold-rolled corrugated sheets, galvanized corrugated sheets, color-coated corrugated sheets, heat-insulated corrugated sheets, imitation tile roofing sheets, etc. They are rolled into many waves such as 5 waves, 7 waves, 9 waves, 11 waves, etc. The number of waves will depend on the needs of the user. Each type will have its advantages and applications.
Ưu điểm của tôn
Some advantages of galvanized sheet

Distinguishing common types of tole today

As mentioned, to meet the needs of users, many types of galvanized sheets have been produced and sold on the market. Each type has its characteristics and features. Customers can distinguish them through factors such as:

  • Sheet metal material: steel sheet metal, aluminum sheet metal, zinc sheet metal
  • Shape of sheet metal: corrugated sheet metal, flat sheet metal
  • Coating layer on the sheet metal surface: galvanized sheet metal, color-coated sheet metal
  • Sheet metal thickness: thin sheet metal, thick sheet metal

For easy visualization, let’s distinguish 6 types of galvanized sheets that are being sought after today with Bao Tin Steel!

cold rolled galvanized sheet

What is a cold-rolled galvanized sheet? Cold-rolled galvanized sheet, also known as galvanized steel, is made from thin-rolled steel. This steel is coated with a layer of aluminum-zinc alloy (Al-Zn) in the ratio of 55% aluminum, 43.5% zinc, and 1.5% silicon.

The reason they are called cold-rolled steel is because this type of steel can reflect maximum sunlight. With that, buildings or houses covered with cold-rolled steel will be cooler than other types of steel.

Tole lạnh

Galvanized sheet

A galvanized steel sheet is also known as a galvanized sheet, zinc-coated steel sheet, galvanized steel sheet roll, etc. This is a product of cold-rolled steel. Then, it is coated with a layer of zinc during the production process under hot temperature conditions. The zinc layer is covered on both sides of the steel sheet and is usually 0.12–0.18 microns thick.

Tole mạ kẽm

Insulated sheet

The insulated sheet is also known by other names such as insulated foam corrugated iron, PU insulated sheet, PU sheet heat-resistant sheet, etc. They are usually made up of 3 different layers:

  • Color-coated steel layer: maximum reflection of heat from the sun, much more durable, and absorbs less heat than galvanized steel.
  • PU insulation layer: PU (polyurethane) has effective soundproofing and heat insulation properties.
  • Silver lining layer. Increases aesthetics and increases heat insulation capacity.

Tole cách nhiệt

tile roofing sheet

Tile roofing sheet or corrugated tile sheet is often used to cover roofs instead of traditional brick and tile materials. With the advantages of durability and high aesthetics, this product has been and is being chosen by many Vietnamese families.

Tole lợp giả ngói

Corrugated sheet

A corrugated sheet is a thin steel sheet that has been galvanized or zinc-aluminum-plated and then rolled into square or round corrugated shapes with high aesthetics. Types of corrugated sheet: 5 waves, 9 waves, 11 waves, 13 waves, …
Corrugated sheet is widely used in many different projects, such as civil houses, factories, warehouses, …

Tole cán sóng

Flat steel sheet 

Flat steel sheets are galvanized or zinc-aluminum alloy-coated steel sheets or coils. It undergoes a hot rolling or cold rolling process and has a flat, smooth, and smooth surface.
Currently on the market, there are 2 types of flat steel:
  • Galvanized Flat Steel Sheet
  • Aluminium Zinc Coated Flat Sheet

Tôn phẳng

Bao Tin Steel has just helped you answer the question of what is tole. At the same time, it suggests the types of corrugated sheets and galvanized sheets that are currently of great interest. Hopefully, through this information, you can understand more about corrugated sheets and make the right choice for yourself. If you need our support or price quote, please call 0932 059 176!

Tiger Steel is a branch of Bao Tin Steel.

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