Metal roofing sheet products have been utilised for centuries, with one of the earliest records of it being the copper roofing used in the third century on a temple in Sri Lanka. Copper, along with its alloys helped create impressive and long-lasting roofs to protect the medieval architecture in Europe. In fact, copper roofing is so durable that a copper roof on the Hildesheim St. Mary’s Cathedral that was installed over 700 years ago is still serviceable today, although it was renovated in 2009.
The copper used in modern roofing sheets by Phoenix Steels is usually limited to accentuating various architectural designs that may include domes, vaults and spires. It is also useful for flashing, downspouts and rain gutters since it is easier to form than steel roofing materials. Copper is also less susceptible to rust, so requires little maintenance.
While roofing products made of stainless steel, copper or zinc require very little maintenance, but this type of roofing that is graded as “utility” or “AG” definitely does need to be coated again once the factory finish has worn off. If this type of roof is not repainted promptly, the alloy will soon begin to corrode. The preferred paint usually contains polyester or acrylic since this coating will remain elastic and perform better in spite of the heating and cooling cycles that this type of roofing is subject to.
Many roofing products that are made of metal and treated with a polymer coating such as Kynar typically require no maintenance unless the coating fails. This is a popular type of roofing that has been used in the United States for more than half a century with very few coating failures. In light of this fact, these polymer coated roofs that are casted are often guaranteed for a lifetime.
The earliest type of metal roofing consisted of galvanized steel sheeting that was corrugated, and this type of roofing is still used in less developed areas of the world. Modern roofs that are made from different metals are typically galvanized steel that has been factory coated, and is available in many different colours. Panels from different steel alloys are available with various types of coatings that make the steel more heat reflective, waterproof and rust-resistant.
Because a roof that is untreated can absorb heat and retain it, there is a high probability that the building will overheat. A ceramic coating applied to the roofing material has a heat reflective characteristic that can initially reduce heat absorption by as much as 85 percent. However, a build-up of dirt over several years can reduce this reflective performance down to about 30 percent.
While stainless steel roofing is available for use in harsh conditions, the product is considerably costlier than the painted galvanized steel roofing. Stainless steel roofing is available as shingles, but it is more often roll-formed and joined by standing seams.
In addition to the many benefits of installing a metal roof, these materials are recyclable and considered a “green” product. Naturally, it is important to use products that do not end up in the landfill, and can be recycled into other useful products.
As you can see here, metal roofs are not only beautiful in appearance, but they will last a lifetime in most cases. They will withstand even the harshest of conditions, and require little to no maintenance. Why not have the best roof over your head? You won’t be disappointed with it.