Galvalume Metal Roofing Types

Since 1972 over 140 million tons of licensed product has been produced globally.

Galvalume metal roofing types.

Galvanized steel is actually created by using a layer of zinc to protect an inner layer of steel from corrosion. Galvalume metal roof and siding panels are coated with a mixture of zinc and aluminum and siliconized coating to help resist scuffs and fingerprints better than a bare metal product. We would not recommend using galvalume panels with exposed fastener steel roofing systems such as corrugated or ribbed steel roofs. The mixture of zinc and aluminum protects the galvalume metal against corrosion and rust helping galvalume typically last much longer than galvanized steel.

Galvalume steel is best for use in prefabricated metal wall panels and standing seam metal roof applications with concealed fasteners. Use galvalume for a sophisticated metal accent on office buildings rustic and modern homes or in industrial style restaurants. Galvalume roofing material combines three of the most important metals used in roofing today steel aluminum and zinc. Here s a side by side comparison of metal roofs and other common roofing materials.

How long do metal roofs last. Normally galvalume is offered in both bare and pre coated pre painted versions. That s two to six times the cost of an asphalt roof. Installed metal roofs run 7 to 20 per square foot depending on the type of metal used.

It is a trademarked name but many people use it as a generic term to describe a metal roofing product consisting of steel coil coated with a metal alloy. When selecting a roofing material there are many factors to take into consideration beyond installation cost. This coating helps extends the life of a steel panel and slow the corrosion process. 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.

On average they have a 40 to 70 year life span depending on the type of metal used the harshness of the local climate and the skill of the installer. There are 3 primary types of steel roofing. Galvanized galvalume and weathering steel.