Can a McElroy Standing Seam Roof Be Installed Over an Old Standing Seam Roof?

Standard Seam Roofs

• You don't have to choose between beauty and practicality. A standing seam roof system provides both, with the load handling ability of a structural roof system, plus architectural style. With a McElroy standing seam roof, panels join via an integral locking system, with hidden metal clips holding them in place. Metal roofing benefits include longevity, aesthetics and lower labor costs for installation.

Installing over Existing Roofs

• McElroy standing seam metal roofs may be installed over an older standing seam roof. Due to the metal's light weight, installing it over various types of existing roofing is easily accomplished. Roofing panels, installed in sheets, minimize labor costs for the roof work. Installing McElroy standing seam roofs over existing standard seam or other roofs also eliminates the typical disposal issue common to these kinds of projects.

McElroy Standing Seam Systems

• McElroy's standing seam roofing systems include the Masterlok-90 and MasterLok-FS, designed for simply sloped roofs. The Maxima is mechanically seamed onto the roof, while the Maxima ADV may also be installed on flat roofs.

  The Medallion I features a narrow batten cap, while the Medallion II has a wider batten cap. The Medallion-Lok includes a snap-together system. The Meridian, among the least expensive of McElroy's roof systems, suits residential or commercial use. The Mirage has higher ribs on its panels, while the similar Mirage II has ribs at a different height.

Costs

• While installing a standing seam metal roof system is initially more expensive than other roofing materials, the metal roof is cheaper in the long run. Unlike more conventional roofs, which may need replacement every 10 to 15 years, metal roofing may last for decades with little maintenance. Homeowners should also take energy costs into consideration. Other roofing materials, such as asphalt shingles, absorb the sun's energy, while metal reflects sunlight. It also cools faster than conventional roofing materials. This means the residence remains cooler, with less energy needed to keep the dwelling comfortable in hot weather.