This type of roofing is made out of interlocking metal panels that are crimped together on-site. Panels and seams run vertically from the top of the ridge down to the bottom of the roof. Seams are crimped in a fashion where they are raised to prevent water from seeping between them and to encourage efficient water run-off. Panels can flex at the seams to compensate for temperature change.
Standing seam roofing can be fabricated out of a number of metals like aluminum, steel and copper. This type of roofing can be difficult to puncture. Standing seam roofing will not promote mildew growth or mold growth and can last for more than 20 years with little maintenance.
This type of roofing has applications on homes as well as schools, factories and warehouses. Cost Helper claims that standing seam aluminum roofing can cost around $15 per sq. ft. to have installed. Steel standing seam roofing can run up to $10 per sq. ft. and copper standing seam roofing runs upwards of $18 per sq. ft. Because of its relative lightweight properties, standing seam roofing can be installed right over most types of existing roofing.