Design Span® hp is ASC Building Products’ signature, high-performance structural standing seam metal roof panel, ideal for residential or commercial applications. Design Span attaches to the roof deck with a clip system which allows for greater thermal movement and installation down to 2:12 sloped roofs. This clip interlock system and factory-applied sealant strengthen the metal roof system’s performance, enabling greater resistance to extreme wind and water infiltration.
Engineered for durability, the Design Span® hp metal roofing system is tested for air infiltration per ASTM E1680, water infiltration per ASTM E1646, and wind uplift per ASTM E1592, ensuring exceptional performance in extreme environmental conditions. The panel is UL Class A Fire Rated when installed in accordance with UL requirements, providing an added layer of safety.
Design Span® hp features a 1¾” seam with a snap interlock, eliminating the need for field seaming. Factory notching is available for turn-under at the eave, providing a clean design and reducing labor during installation.
Available in 24 and 22-gauge options, the Design Span® hp metal roofing system offers net coverage widths of 12″, 16″, 17″, and 18″, providing flexibility to meet various design requirements. The panel features the Dura Tech™ 5000 or Dura Tech™ mx paint system, offering a wide range of energy-efficient colors to suit diverse aesthetic preferences. Dura Tech™ 5000 or Dura Tech™ mx feature commercial-grade fluorocarbon paint-system technology, that offers improved resistance to extreme environments.
- Application: Roofing
- Gauge: 24 & 22
- Coverage: 12″, 16″, 17 & 18"
- Minimum Slope: 2:12
Testing and Performance
- Metal roofing is well-known for its durability by defying the elements.
- Testing: ASTM E1592 (wind uplift), ASTM E1680 (air infiltration) and ASTM E1646 (water infiltration).
- Meets UL580 Class 90 wind uplift requirements, and class 4 Impact (Hail) Resistance rated per UL 2218.
- All structural performance data is contained within Building Code Approval Report.
- Weathertight warranty available. Minimum slope required. Contact your sales representative for more information.
- All testing performed by accredited third-party.
Additional Features
- Custom manufactured metal roof lengths: 5′-3″ to 45′-0″. (Lengths over 45′ available for additional charge).
- Wide batten cap available for a bold appearance.
- Subtle striations available on 16″, 17″ & 18″ sizes. (Click here to view an infographic explaining striations)
- Factory notching available for turn under at the eave (some limitations apply). Notch provides a clean detail and reduction in labor.
- Snap-together panel, no field seaming required.
Oil Canning Disclaimer
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.
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