Mike Gonet

There are generally two types of metal roofing products; architectural ones, and structural ones. The architectural ones serve two functions - accentuating architectural elements of the building, and shedding water efficiently. These architectural products are generally thinner, and are installed on roof decking, which they pass their weight loads to. Structural roofing products, by contrast, actually support weight loads directly, passing them through to the building's structural elements. Structural metal roofing is typically used for commercial buildings, warehouses, and the like, and is only rarely used in residential applications.

Many consumers are unaware that metal roofing can be an attractive, energy-efficient alternative to traditional roofing. The peace of mind that comes with a metal roof stems from its lasting durability, its fire safety, high wind resistance, and energy efficiency. Metal roofs typically increase the value of a home in several ways - by having a long life, requiring only simple maintenance, and projecting a distinctive beauty. Classic Metal Roofs has been providing roofing solutions to residences and businesses for over 30 years.

Metal roofing materials are based on a variety of metals. Galvanized Steel, which is probably what comes to mind most readily when most homeowners think about roofs, is quite popular. However, Galvalume Steel (base carbon/iron steel coated with an alloy of aluminum and zinc), and Aluminum are also widespread in use. Copper is also an option, as is Zinc - both are expensive but highly attractive. More recently-introduced specialty metals include Terne and TCS (both are combinations of multiple metals, made of either carbon steel or stainless steel, coated with a zinc-tin allow). In rare cases, even Titanium can even be used to construct a metal roof. The primary differences between all of these metals is appearance, susceptibility to corrosion and staining, malleability, and cost.

Metal roofs can be installed over existing roofing materials, because of their relatively low rate. This can usually be done for older composition shingles, or even wood shingles or shakes. Weight is one issue to consider when evaluating whether this is a desirable approach, but it's important to take into account building codes and structural integrity of the building. One advantage of installing a metal roof over existing roofing is t