N.A.R is the industry leading supplier of metal roof and wall systems, including six separate standing seam roofing systems. N.A.R has always and continues to provide the metal construction industry with the highest quality products and services available to architects, owners and contractors. N.A.R is an environmentally friendly manufacturer in both process and product offerings. Our metal panels are made from 25-35% recycled materials, and when you build with steel, you are using a 100% recyclable product.    Metal Roofing Alliance Metal Roofing Alliance The Metal Roofing Alliance was formed in 1998 by a small group of forward-thinking metal roofing manufacturers with the main goal of educating consumers about the many benefits of metal roofing.