Corrugated Sheets

Your Professional Corrugated Sheets Supplier

Tianjin Kun Yu Technology Co., Ltd. is one of the leading steel exporters in China. The company specializes in exporting a wide range of steel products, including steel pipes, steel plates, carbon steel, galvanized steel, stainless steel, aluminum steel, and steel profiles. These products are primarily utilized in various sectors of the national economy, such as the chemical industry, machinery, construction, public utilities, shipping, oil, and others.

Customized Services

With over a decade of experience in the manufacturing and R&D of steel products, we offer comprehensive customization services for a variety of materials to meet specific customer requirements.

High-Quality Products

Our factory employs state-of-the-art production processes and advanced technology to ensure the superior quality of our products.

High Productivity

Equipped with cutting-edge production facilities and a highly skilled technical team, we guarantee efficient production to meet customer demands promptly.

Excellent After-Sales Service

We provide exceptional after-sales service, addressing customer complaints and resolving issues effectively to ensure customer satisfaction.

 

 
 
 

Parameter

 

 

Substrate quality

Mild steel

Galvanized material

Zinc

Thickness

0.3-2.0 mm

Breadth

1000mm,1500mm,2500mm, can be customized according to demand

Length

2000mm,2500mm,3000mm, can be customized according to requirements

 

Types of Corrugated Sheets

 

The corrugated sheets produced by our company mainly include the following types:

Corrugated Roof Plate

Corrugated steel plate refers to a certain thickness of hot-rolled steel plate or steel strip in accordance with the specified size through waveform rolling and cold bending processing of corrugated round pipe or curved corrugated steel plate.

Galvanized Corrugated Sheet

The main material of galvanized corrugated sheet is low carbon steel or cold rolled plate, the surface is covered with a layer of zinc through hot dip galvanized or electric galvanized to prevent rust and corrosion, and some will add polyester coating, silicate coating, etc., to increase weather resistance and decorative effect.

Galvanized Corrugated Sheet

 

Advantages of Corrugated Sheets
 

Easy to install
Corrugated sheets fit the bill if you’re looking for a lightweight and easy-to-install roofing solution. The reduced structural load means you’ll save on building costs, ensuring you get a professional and aesthetic result on time and within budget.

 

Stands up to adverse weather
Unlike traditional roofing tiles, corrugated roofing sheets are built to withstand any weather. They do a fantastic job of standing up to hail, storms, icy conditions and torrential rain without leaking. A properly installed corrugated roof acts as a weatherproof barrier, protecting your building and its contents all year round.

 

Low maintenance
Traditional roofing systems can take a great deal of looking after, costing you time and money. If you don’t promptly deal with any leaks or other damage, those costs can rapidly mount up. Well-installed corrugated roof sheets, on the other hand, only need an occasional recoat and can last for decades.

 

Durable and long-lasting
Corrugated roof sheets have a well-deserved reputation for durability and longevity. The grooved design gives each sheet an excellent strength-to-weight ratio, while materials like steel and aluminium make each sheet highly resistant to wear and tear. It all adds up to a corrosion-resistant roof that’s incredibly long-lasting.

 

Fire-resistant option
Corrugated metal sheets can give your building excellent fire resistance when treated with a flame-retardant coating. So while your roof won’t be 100% fireproof, the risk of it catching fire and collapsing is significantly reduced for enhanced protection.

 

Energy-efficient
Modern buildings rely on superior energy efficiency to keep operating costs low. Metal roofing is a fantastic way to lower your bills and could save you up to 40% on your energy bill. Insulated corrugated roof sheets keep your building warm in winter and reflect heat away in summer, saving you money on heating and cooling.

 

Corrugated Sheets Materials

 

Steel

Preferred for permanent installations, thanks to its resistance over time and its longevity;

Aluminum/Zinc

Very resistant to corrosion, suitable for constructions in coastal areas or highly polluted areas thanks to its ability to reflect light and heat;

Corrugated Roof Plate

Copper

Mainly appreciated for the aesthetic effect, it gives a refined look to buildings;

Aluminum

Light and high-performing, it is the element with which corrugated sheet metal best expresses its potential.

 

Corrugated Roof Plate

 

Precautions for Cutting Corrugated Sheets

● Measure the dimensions precisely and make markings on the sheet for accurate cutting
● Use suitable tools for cutting polycarbonate roofs such as a circular saw
● Clamp the sheet to a stable structure during cutting to prevent dislocation and movement
● Cut along the marking slowly and continuously to avoid chipping

 

Storage Precautions for Corrugated Sheets
 

Always store panels in a dry environment with relatively stable temperatures.

● It’s best to avoid prolonged exposure of pre-painted panels to wet or humid conditions, which can cause paint blistering or substrate corrosion, especially at cut edges.
● Significant temperature differences and fluctuations can also cause condensation/moisture to develop on the panels.
● If bundles of nested panels become wet, the panel sheets should be separated, wiped with a clean cloth without delay, and then placed so that air circulation completes the drying process. This is true for both painted and unpainted panels.

Store panels in a spot where there is adequate airflow.

● Airflow is vital for metal, especially if the panels become wet from condensation or other phenomena, as air allows water to dry.
● Panels can be stored in a bundle or a crate; however, you should still verify that air can circulate through the panels.

 

 

Packaging and Shipping

 

 

Packaging

Standard seaworthy export packing or according to the customer request.

Shipping

Transported by DHL, UPS, EMS, Fedex, SF, by Air, by Sea.

According to customer requirements

 

 

Our Factory

 

Tianjin Kun Yu Technology Co, Ltd. is located in Beichen District, Tianjin, China, is a production and trading integrated enterprise, focusing on the field of steel materials. Our steel plant covers an area of 150,000 square meters, with spacious production workshops and advanced storage facilities, the plant covers an area of 128 employees, and builds a well-structured, professional and complementary team structure.

 

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Our Certificate

 

 

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FAQ

 

 

Q: How much should corrugated roofing sheets overlap?

A: An overlap of 150mm is often recommended for roofs with 10° pitches, whilst 300mm is recommended for 5° pitches. Always allow for an overhang of at least 60-70mm so that water can run off without coming into contact with rafters or purlins, which can lead to damp and structural weakness.

Q: How long does corrugated sheet last?

A: Depending on the material and maintenance, corrugated roof sheeting can last anywhere from 30 to 50 years or more. The metal sheets' ability to withstand harsh weather conditions, such as heavy rain, strong winds, and extreme heat, adds to their long-lasting performance.

Q: Which is the strongest roofing sheet?

A: Corrugated Metal Sheets. Corrugated metal roofing sheets are highly durable and resistant to severe weather. They feature a rippled shape that adds strength and can last up to several decades.

Q: Are corrugated sheets waterproof?

A: Corrugated roofing sheets provide a fast and simple waterproof roof solution for DIY, Industrial and agricultural roofing projects.

Q: How do you seal corrugated sheets?

A: Apply a sealant or adhesive tape to keep overlaps tight and prevent leaks. Check the angle of installation: Install corrugated plastic roofing at an angle to encourage water runoff and reduce the chances of water pooling or condensation building up on the sheets.

Q: Where do you screw corrugated sheets?

A: You can place screws through the crests or in the valleys. To maximise water tightness, always place roof screws through the crests.

As one of the leading corrugated sheets manufacturers and suppliers in China, we warmly welcome you to wholesale cheap corrugated sheets from our factory. All customized steel products are with high quality and competitive price. For free sample, contact us now.hot rolled carbon steel coil

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