Overview
Panels are roll-formed in the shop or on site as single lengths down the roof slope and fixed to purlins with clips that allow thermal movement. The seams are folded or mechanically seamed, so there are no screw holes in the roof surface.
The system suits long-span factories and warehouses and rooftop solar fixed with non-penetrating clamps. Wind uplift resistance should be proven by system tests (for example ASTM E1592, FM 4471).
Uses
- 01Long-span factory and warehouse roofs
- 02Low-slope roofs
- 03Roofs with clamp-mounted solar
- 04Plants insured to FM requirements
Selection and acceptance checks
- Check wind uplift test approvals of the roof system
- Check clip spacing for each wind zone
- Check the seaming machine and details at flashings and gutters
Reference standards
- ASTM E1592
- FM 4471
- ASTM E1680
For reference only. The standards for each project follow its design documents, current Vietnamese codes and the investor’s requirements.
Reference brands
Brands are listed for reference; World Steel selects suppliers according to each project’s specification.
Sectors and solutions
Sectors
FDI factories Logistics and cold storage Energy
World Steel services
Steel structures and PEB Expansion and upgrade Design & Build
