Metal Over Existing Shingles

On an existing home, the metal roof can be applied over the existing roof. The metal roofing prices are reduced because the homeowner does not need to have the current roofing material removed, a time-consuming and often expensive project. The lightweight nature of metal makes it easily portable, reducing transportation costs. When metal roofs are used on new construction, they are ordered by the piece, cutting back on waste material and allowing sheets to be cut to exact lengths. One of the reasons that metal roofing prices are higher is because the materials cost more to obtain. In addition, the installation process is very technically involved. Installers must possess special skills and have undergone training specific to the type of metal roofing system that is being used. Many more hours of tedious work are required to install a metal roof than are needed for an asphalt roof. It takes between two and three times longer to install a roof made from metal.