AEP Span is a leading manufacturer of metal siding and metal roofing throughout the Western United States. With a full-line o ... f performance rated structural metal roof and siding, AEP Span provides the architectural community uncompromised design flexibility for new construction and re-roofing applications. AEP Span is committed to delivering the highest quality product line, excellent customer service, and innovative solutions that protect not only buildings, but reputations. Our product are used in home, commercial, and industrial applications as new construction or remodel. Sustainable, durable, energy efficient metal roofing products are the right choice. read more