Corrugated Metal Roofing

Corrugated metal roofing is an excellent way of providing safety and security for your home or business. This style of metal roofing has been used since corrugated metal was first introduced in the middle of the nineteenth century. Since then, it has been a material of choice for many contractors due to its superior strength, endurance, and resilience. While the specific properties of a corrugated metal roof will rely on the particular material used, in general this style delivers higher mechanical properties and improved performance. This makes it a great choice for locations that will face harsh environmental conditions or are hard to get to. While corrugated metal roofing has a high initial cost associated with the materials and installation, it is built to outlast many of the more conventional roofing styles.

Corrugated metal roofs all start with sheets of material which has been processed using a technique called cold rolling. This process is fundamentally precisely what you'd think - the metal sheets are pressed after they have cooled to give them the characteristic 'ripple' that distinguishes corrugated materials. The folds in the metal aren't for show - they are specifically done to strengthen the material. Bending the metal in such a way increases the strength and toughness of the material in the direction parallel to the folds. No matter whether the metal roof will eventually use copper, steel, or aluminum, it all starts with cold rolling. It's possible to emphasize strength, corrosion resistance, or aesthetic look depending on the precise material chosen and the finish or coating applied to the metal.

Stainless steel roofing is more often chosen for its corrosion resistance than for any mechanical property. While it may be weaker than galvanized steel, it has the benefit of retaining its classic shine for far longer than most other untreated metal roofing materials. Corrugating the stainless steel provides extra strength, allowing for a great combination of mechanical resilience and resistance against the elements.

Galvanized corrugated metal roofing is a tradition that has been practiced successfully for many years. Galvanized steel has excellent physical properties and lasts for many years without need for maintenance or upkeep. Since the steel would rust on its own, a special coating of zinc is applied before the cold rolling process. This has the benefit of providing a barrier that keeps rust formers like water or air away from the metal roofing. The downside to this is that the zinc coating itself reacts with the environment. While this doesn't detriment the physical properties of the corrugated metal roof, it does alter the color of the metal roofing material. This makes galvanized steel unattractive for certain situations where the aesthetic look of a building is more important.

Modern engineering has applied knowledge of different metal alloys and polymer finishes to allow corrugated metal roofs to take on any number of different appearances. By changing the composition of the coating, it's possible to retain the excellent physical properties of galvanized steel while creating a prettier roof to look at. The look of the corrugated metal roofing can further be customized by using high quality polymer based paints. While finishes can fade or become damaged over time, most of the ones applied to corrugates metal roofs last for decades without losing too much of their initial brilliance. As engineering and materials science progresses, newer innovations will surely be applied to corrugated metal roofing to make this style ever more practical.