Traditional Metal Roofing
Traditional Metal Roofing
The purpose of traditional is to increase the tensile strength of a material. The first traditional metal roofing materials used was galvanized iron. The traditional metal roofing process increased the bending strength of the galvanized iron in one direction, perpendicular to the grooves. When used on a roof CGI sheets overlap by at least a couple corrugations to insure waterproofing. Later other materials were galvanized for roofing, and strengthened in the same way.
Origins of Traditional Metal Roofing
The idea for making CGI came to an engineer for the London Dock Company named Henry Palmer during the 1820s. Originally wrought iron was used for CGI, and due to its lightweight, corrosive-resistant nature, it quickly became a popular material for construction in the rural, poorer areas of the U.S., India, New Zealand, Chili and Australia. Additionally, for some of these countries the material went on to become popular in cities as well. Near the end of the 19th century, mild steel replaced wrought iron yet the initials CGI were still used.
Advantages of Traditional Metal Roofing
Maintenance of Traditional Metal Roofing
The amount of maintenance required of a traditional metal roof is dependent on its quality/utilization. An inexpensive outbuilding, containing only “AG” or a “Utility” grade material, may need repainting with a roof coating. The original factory painting with an acrylic or polyester coating can allow corrosion and fading. New polymer coatings, like Kynar, are becoming common. A polymer coating is superior to older coatings in longevity, lasts a lifetime without experiencing fading or corrosion. It is important to note that panel fasteners exposed to the elements may require occasional re-caulking or re-tightening to avoid leaking.
When seen as an investment rather than an expense the cost of a traditional metal roof is easy to justify. The same attributes that made it popular over a century ago are still present, and new features make it an even more attractive choice for today’s consumer.
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CUSTOMER TESTIMONIALS
We recently had Armor Metal Roofing install a new metal roof. Glenn was professional, knowledgeable and helpful as we discussed options and selected the materials. The crew that installed the roof was top notch, from removing the old roofing being careful not to damage a new deck to the quality work they did installing the new roof. The quality of their work was tested the day after installation as several days of rain and high winds came through. Very happy with the roof and the entire experience dealing with the company.
May 5, 2023