Galvalume Vs Galvanized Steel Roofing

Corrosion is the death of metal roofing as we all know.

Galvalume vs galvanized steel roofing.

The cost of galvalume and galvalume plus are about the same as that of galvanized steel. Manufacturers begin with a carbon steel base sheet that is then continuously hot dipped with aluminum and zinc alloys until it reaches a coating consisting of 55 aluminum 43 4 zinc and 1 6 silicone. When completing a project with corrugated sheet should you go with a galvanized or galvalume metal roof. Many steel mills nowadays license the product because of its popularity.

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. Galvalume is a metallic coating that is applied to the base sheet of steel that is used in metal roofing. Galvalume is an alloy with both zinc and aluminum in it. Most galvalume like galvanized steel is coated.

But galvalume has an excellent performance life in bare exposures as well. In fact galvalume has been around for more than 40 years after bethlehem steel created galvalume. Galvanized sheet is carbon steel sheet coated with zinc on two sides by a continuous hot dip process. The zinc ions.

Traditional galvanized metal roofing is a corrugated sheet of carbon steel with a galvanized coating. This article takes a look at galvalume vs galvanized roofing. Our team can help you choose the perfect metal coating for your project and. Galvanized and galvalume steel roofing it is important to note that base metals can be combined coated or layered with additional metals in a variety of bonding processes.

The coating is created by dipping the straight sheet in hot molten zinc. This method tightly adheres the coating to the steel with an iron zinc alloy bonding layer formed by a diffusion process while the heated steel strip is in contact with the molten zinc. If you re considering a galvalume metal roof or galvanized metal roofing get in touch with a product specialist today. Both galvanized steel and galvalume weigh 100 to 150 pounds per 100 square feet and contain about 35 recycled materials.

Galvalume roofing material combines three of the most important metals used in roofing today steel aluminum and zinc. The answer lies in the difference between the two. Galvalume and galvanized steel roofing are affected differently by corrosion. Back in 1972 bethlehem steel trademarked the metallic coating galvalume that is applied to a steel base sheet used in the forming of metal roofing panels.

Via abc metal roofing. What is galvalume and why is it used for metal roofing. The galvalume coating is made up of 55 aluminum and 45 zinc. Bethlehem corporation galvalume vs.