Corrugated roofing is highly durable and it is because of its shape. These sheets require the support strips to stabilize the material since the screws for fastening do go through the peak of the ribs. The curvature of the ribs and valleys prevents the screws from sealing adequately in the valleys. Because of the special corrugated shape, flimsy and lightweight metals like aluminum can also be equipped to undergo decades of weather beating.

The most popular corrugated sheet is a galvanized steel sheet, which is used mostly as the base material. A general observation is noted that roofing sheets are installed at places with semi-open or temporary approaches of spatial arrangement in domestic, industrial, and commercial projects.

Advantages:

1.Strong corrosion resistance: The surface of the corrugated sheet is treated with galvanization, which provides excellent corrosion resistance and can be used for a long time in harsh environments.

2.High strength: The surface of the corrugated sheet is cold-rolled, which makes it have high strength and wear resistance, and can withstand large loads and pressures.

3.Beautiful and practical: The surface of the corrugated sheet is treated with galvanization, which provides a high gloss, flat surface, bright color, and beautiful appearance.

4.Easy installation: The corrugated sheet is light in weight and easy to install, which can significantly reduce construction costs and time.

5.Economical and practical: The price of the corrugated sheet is relatively low, with a high cost-effectiveness ratio, suitable for the construction of large-scale buildings, warehouses, garages, and other places.

Galvanized 40g and galvanized 270g refer to the weight of the galvanized layer, indicating that on each square meter of surface area, the weight of galvanized is 40 grams and 270 grams, respectively. The difference between the two is the thickness and corrosion resistance of the galvanizing layer.

Galvanized 40g is relatively light, the galvanized layer is thin, and its corrosion resistance is low. It is suitable for some occasions that do not require high corrosion resistance, such as some indoor uses.

The galvanized 270g galvanized layer is thicker, corrosion resistance is stronger, suitable for some occasions with high corrosion resistance requirements, such as some seaside, coastal areas and industrial areas and other harsh environments of construction and equipment. In addition, the price of galvanized 270g is relatively high, which is suitable for occasions with high requirements for corrosion resistance and service life of galvanized layer.

In short, the weight of galvanized selection should be determined according to the desired corrosion resistance and use environment to achieve the best use effect and economic benefits.