An American, family-owned company with global reach and a reputation built on 55+ years of quality craftsmanship and knowledgeable staff. ATAS International is a leading, innovative manufacturer of metal walls, metal roof systems, accessories and more. The ATAS portfolio features an expansive selection of products available in aluminum, steel, zinc, stainless steel, and copper. ATAS offers several different types of standing and batten seam roof panels that utilize highly engineered fasteners for a concealed fastening system. Our modular roof systems include a variety of metal tiles and shingles. Metal tiles can add a unique aesthetic to your building’s roof without the product weight and maintenance issues associated with traditional roofing tiles. ATAS metal shingles allow for unlimited design flexibility and creativity.