Metal roof panels available in the marketplace today feature protective coatings. General wear and tear from weather, sunlight and fluctuations in moisture and aridity cause the built-in coatings to wear off or become faded. Roof leaks can arise due to failure of molding between joints, fastener failure, ineffective caulking around panel penetrations such as heating system vents and plumbing vents, seriously rough weather conditions and roof movement. To remedy these issues new fasteners need to be installed, new premium sealant needs to be reapplied to all roof penetrations and seams, and finally the metal roof needs to be recoated once all these maintenance tasks have been completed.
The premier product to use to restore metal roofing panels is Silicone Restoration Membrane. It lasts longer than most any roofing product and its product performance records are the some of the best in the roofing industry. .
Metal Roofing Types by Definition:
Types of commercial metal roof designs:
- Aluminum: Aluminum is highly receptive to today’s high-performance architectural coatings. A wide variety of factory-applied coatings and colors perform well and stay colorfast on aluminum roofs, which is critical for highly visible steep-slope roof applications. The coatings also help ensure virtually maintenance-free performance and long service life.
- Copper: Long life and low maintenance are critically important qualities for exterior treatments of commercial buildings. Metal is emerging as the material of choice in many roof and wall applications, and copper is a popular choice among metal types. A primary reason for this is its permanency. Copper roofs can last decades, if not centuries.
- Steel: Steel is considered a universal building product because of its strength, versatility, durability, and economic value. Today, standing-seam metal roofs are used for countless structures, including shopping centers, schools, churches, and libraries. According to the American Iron and Steel Institute, steel roof construction is used in nearly half of all low-rise commercial, industrial, and institutional buildings erected in the past several years.
- Terne: Terne is produced by coating metals such as carbon steel and stainless steel with a specially formulated alloy containing zinc and tin to dramatically increase corrosion resistance. When terne roofs were first used in colonial times, it contained roughly 80% lead and 20% tin. However, in the latter half of the 20th century, as lead was found to have potentially detrimental effects on health, the lead/tin alloy was replaced. In the mid-1990s, a new and superior zinc/tin alloy was produced that provides improved performance and aesthetics over the original—minus the health risks.
- Zinc: Zinc is a natural material that never fades and retains its look over its entire life span. It is also a noncorrosive, environmentally friendly product with a 100%-clear water runoff. Zinc’s anticorrosion qualities have led its use extensively as a protective coating for steel and other metals.