The Galvanizing Process
Metal Galvanized Roofing Sheet consists of galvanized metal sheet and other metal sheets, that are cold-formed and rolled into different corrugated shapes. As per the external surface condition, they are divided into flat, small flat spoons, large flat spoons, bright full-face products and light-duty whole-house products. The galvanized products are highly demanded in the market for their long life span, if not for their attractive and ever lasting luster and colour change potential. This product has the potential to meet any given architectural design requirement. The galvanized roofing sheet is not very much expensive in comparison to other non-galvanized products and hence, Nam Kim Steel is an ideal choice for the buyers.
The metal galvanized roofing sheet is also available in different shapes and sizes and hence, buyers can select the required size as per their requirement. The galvanized roofing sheets are available with different load-bearing values and therefore, buyers can take up the choice depending on the anticipated usage. For the top-loading type, the sheet is normally wrapped around two points, whereas for the bottom loading type, the spangle is stretched over one point. The theoretical weight of each product is available and users can take up the weight loss factor to choose the right product as per their requirements.
The metal galvanized roofing sheet can be made into different types such as hot-dip galvanized steel sheets, cold-dip galvanized steel sheets, hot dip galvanized steel bars and cold dip galvanized wood boards. The cold dip galvanized steel sheets are the best suited for the roof repair work. As it contains zinc coating which is known for its corrosion resistance ability, it is preferred to use these steel sheets for the galvanized roof construction. However, the hot dip galvanized steel sheet is a better option as it contains martensite coating which is equally effective for the same purpose. Users have the flexibility to select the appropriate metal galvanized roofing sheet as per their requirements.
The metal galvanized roofing sheet is also available in different quality grades such as high quality steel, low quality steel and stainless steel or stainless corrugated sheet. It is necessary to assess the quality before buying the metal galvanized corrugated sheet. Most of the manufacturers provide installation services at competitive prices to meet the requirements of the customers. Online research can be helpful for the buyers to locate the best manufacturers in the city who offer great discounts on the steel sheet products. The theoretical weight of each product can be assessed online by taking the height as the measuring point.
Most of the metal galvanized roofing products are available as rolled or flat galvanized steel sheets. The flat rolled product can be easily installed over the existing roof structure by simply securing it with wooden planks. However, the process of rolling becomes difficult as there are chances of the roll becoming twisted. Flat rolled galvanized corrugated sheet must be nailed into place using stainless steel or aluminium nails.
Before choosing any metal roofing sheet, it is important to check whether the metal has undergone the specific galvanizing procedure. In case of steel, it must have been galvanized using the special hot dip galvanization process in which an galvanize solution is applied on the metal through dipping it into a bath of molten aluminum or iron. This process makes the steel item smooth and prevents corrosion. In case of copper or bronze items, they have to be electroplated as it has a much greater conductivity and hence a smooth shiny finish. The other important thing is to check whether the metal has passed the basic and preset quality control standards and that it meets the design specifications set forth by the manufacturer.