The Pros and Cons of Metal Roofs
Historically, almost all the original and original-replacement flat and low slope roofs on Capitol Hill were made of standing-seam tin. Tin was one of the most common metal roofing materials used throughout the 19th century, when most Capitol Hill homes were built. Today, you will still fi nd many roofs in the area that are 40+ years old that are standing-seam tin. In recent years though, roofs have been replaced with “built-up” asphalt or rubber-based roof systems. These roofs are less expensive than tin, copper or other metal roof systems and are of better quality than earlier builtup roofi ng materials, but metal roofs will last two to three times longer than a traditional asphalt roof. [...]