AEP Span is a leading manufacturer of architectural metal products, offering performance rated structural roof and siding. AEP Span affords the architectural community uncompromised design flexibility and freedom of expression by allowing architects to design and specify roofing and framing systems for new construction, retrofit and re-roofing applications. AEP Span blends traditional design with contemporary technology and tested values. The innovative thought that goes into the product design, customer service and consideration for the installer is what makes AEP Span's roofs and walls protect not only buildings, but reputations.

Johns Manville, a Berkshire Hathaway company, is a leading manufacturer and marketer of premium-quality building insulation, commercial roofing, roof insulation, and specialty products for commercial, industrial, and residential applications.

JM’s product offerings include: Formaldehyde-free^™ fiber glass building insulation, commercial roofing membranes and roof insulations, filtration media, and mats and reinforcements.

Carlisle has led the single-ply industry for over 45 years in product innovation, customer enthusiasm and system integrity. And now, we have achieved an industry milestone with the production of our 12 billionth square foot of single-ply membrane.

Sika Sarnafil’s world-class roofing and waterproofing membranes are your source for peace of mind. Sika Sarnafil is dedicated to creating roofing products that last—quality that's evident in the durable roofing and waterproofing systems we produce in the United States for the North American market.

Versico has a wide range of single-ply roofing systems to meet almost any building design. From our EPDM line of VersiGard Roofing Systems to our heat weldable lines, VersiWeld TPO and VersiFlex PVC Roofing Systems. And with a whole line of accessory products and insulation, Versico has the ability to solve your roofing needs.

Dimensional Metals, Inc. (DMI) specializes in the manufacturing of Architectural Metal Panel Systems and Fabricated Architectural Sheet Metal for the construction industry. We are backed by more than seventeen years of sheet metal fabrication experience which allows us to insure success on each project.

Firestone Building Products Company—As the leading manufacturer of superior commercial roofing solutions, Firestone Building Products Company, LLC has been trusted by contractors, building owners and specifiers for nearly 30 years. The company has steadily diversified from a single product to a full line manufacturer of EPDM, thermoplastic, asphalt and metal roofing systems, polyiso insulation and accessories.

Ecostar—EcoStarŪ is the leading manufacturer of sustainable, environmentally friendly steep-slope roofing products. Created with a simple goal: to manufacture premium steep-slope roofing products using rubber and plastics technology, EcoStar has built on this premise for the past ten years.

Metal Panel Systems, Inc.—Metal Panel Systems, Inc. is a manufacturer of metal roofing products. Our specialty and focus is with architectural standing seam systems. With a wide variety of panel profiles and complimentary product offerings we have the ability to provide our customers a complete roof package. Gutters, soffit, curved panels, tapered panels, and endless profiles of custom sheet metal components are just a few examples of products combined together to provide a total metal system.