Roofing Sheet Purlin Spacing: What Controls the Span
Roofing sheet purlin spacing often starts at 660-1200 mm. See how profile, thickness, roof zones, loads and end spans determine the final layout.
Roof Structure
Lightweight Roofing Sheets: Weight, Structure, and Renovation
Learn how lightweight roofing sheets change dead load, renovation planning, handling and wind design, with a practical kg/m2 calculation.