What is Material of Galvalume Roofing Sheet

Galvalume Corrugated Roofing Sheet


The aluminum-zinc alloy structure of low cost Galvalume Corrugated Roofing Sheet is composed of 55% aluminum, 43.4% zinc and 1.6% silicon solidified at 600℃ at high temperature. The whole structure consists of aluminum-iron-silicon-zinc, forming a dense quaternized crystal, thus forming a strong and effective barrier to prevent corrosion factors from penetrating.

Galvalume Roofing Sheet has the following advantages:

Excellent durability
Excellent thermal reflectivity
Excellent heat resistance
Although the price is more expensive than galvanized board, from life, with higher cost performance.

Galvalume Roofing Sheet is aluminum-silicon alloy coated steel plate, in which the content of aluminum is 90%, silicon 10%. Aluminized steel plate has good heat resistance, heat reflection, and corrosion resistance, and its mechanical and physical properties are better than cold-rolled steel plate. Because of the superior performance of the aluminized steel plate, it has been widely used in our daily products. Such as car muffler, household appliances and so on.

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