Merchant & Evans manufactures ZIP-RIB architectural/structural standing seam metal roofing used in curved, low slope, and ste ... ep slope applications. With a tradition of engineering excellence and proud craftsmanship that stretches back to 1866, Merchant & Evans offers an advanced and highly diversified line of top-quality metal roof systems to cover virtually any design requirement. Customform roofing, siding, fascia systems, mansards, soffits, copings, sheet metal trims and cornices round out the custom sheet metal capabilities of Merchant & Evans while ZIP-RIB structural roofing offers the highest and longest performance of any structural/ functional standing seam metal roof system in the world. ZIP-RIB was developed by Kaiser Aluminum in 1964 and has been a part of Merchant & Evans product line since 1980. It has proven its ability to protect and beautify structures in some of the world's harshest environments. read more