Usually, Galvanized Aluminum Roofing Sheets are mainly used in agricultural buildings,
where rust is not a problem and the cost must be kept low.
Buildings can also use galvanized metal roofs,
looking for a traditional rusty appearance in new buildings.
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It is important to note that base metals can be combined, coated, or layered with additional metals in a variety of bonding processes. Two popular roofing materials that use this process of binding two or more dissimilar metals are referred to as galvanized and galvalume, each of which use steel as the base metal. Iron or steel can be coated with zinc; this is known as a galvanized metal. The zinc acts as a protective layer to iron or steel to prevent rust.
Galvalume is aluminum and zinc coated steel. The combination of aluminum and zinc is used once again as a protective layer to the steel. Steel exposed by itself without other protective metal coatings such as aluminum or zinc turns a reddish-or yellowish-brown flaky coating of iron oxide that is formed on iron or steel by oxidation, especially in the presence of moisture. It is what we refer to as "rust".
Rust has been called "the great destroyer" and "the evil".The Pentagon refers to it as "the pervasive menace". It destroys cars, fells bridges, sinks ships, sparks house fires, and nearly brought down the Statue of Liberty. Rust costs America more than $400 billion per year—more than all other natural disasters combined.
This is particularly true for galvanized and galvalume roofs where the base metal steel is now exposed to the elements. Warranties for galvalume and galvanized roofing will call out a certain acceptable amount of rust from any edge that is cut within a specified period of time. Do you want to look up at a newly installed metal roof and wonder when the rust will show up, the paint finish will start peeling, and rust will begin running down your siding? I suspect not. So if that is true, you will want to choose to have an architectural aluminum roof installed, as aluminum does not rust. Aluminum, as you remember, is used to coat steel in the galvanized and galvalume products. You also do not want the fasteners holding your roof on, which may also be galvanized undergoing deterioration.
Galvanized Aluminum Roofing Sheets adds zinc, aluminum and silicon.As the coating dries, fragments of aluminum and zincmolecules coalesced into a pattern on the surface of the sheet.Aluminum areas provide corrosion resistance, zinc provides plating protection.
A small amount of silicon helps the coating adhere to the underlying metal, even when it is cut or rolled into a corrugated shape.
E-mail:sales@licheungsteel.com
Product Specifition
Product name | Galvanized Aluminum Roofing Sheets |
Standard | JIS G 3302-1998, EN 10142/10137, EN 10169 |
Basic material | galvanized steel sheet |
Thickness | 0.12-1.5mm |
Width | 610-1250mm (after corrugated) |
Coating | Zinc coating/color coating/as customer demands |
Zinc coating | Z30-275g/m2 |
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Our Company
We are the manufacturer of Roofing sheets, and we provide excellent industrial galvanized Roofing sheets.These perfectly designed and developed roof panel series can provide different surface treatment specifications according to customers' specific requirements. We offer a wide range of roofing panels made of high quality materials that are durable and effective in the construction industry.We offer various colors and sizes according to the customer's specifications.These are easy to install and maintenance-free.They are very attractive for appearance and are provided with international standards of cost-effectiveness.We also provide our valued customers with impeccable galvanized coated roofing panels.These products are made of high grade iron and alloy and conform to industry specifications.These panels meet industry specifications and are easy to cover with open huts.
Contact us
Chloe
Henan Li Cheung Steel Co., Ltd
Address:DEVELOPMENT ZONE HUIGUO TOWN, ZHENGZHOU CHINA
Fax:+86 371 89812228
Tel:+86 371 89812229
MP/Wechat/Whatsapp:+86 13213178890
E-mail:sales@licheungsteel.com
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