Performance-rated Structural Standing Seam Metal Roof System
Design Span® hp is a performance-rated structural standing seam metal roof with net coverage of 12″, 16″, 17″, & 18″. Design Span® hp is excellent as a roof over metal or wood decking, and as a fascia or mansard over plywood or supports.
Weathertight warranty available. Minimum slope required. Contact AEP Span representative for more information. (Roof application ONLY)
Oil Canning: All flat metal surfaces can display waviness commonly referred to as “oil canning”. “Oil canning” is an inherent characteristic of steel products, not a defect, and therefore is not a cause for panel rejection. Oil Canning Technical Bulletin (pdf)