Calculation examples A. Roof type Mono-pitched roof Roof seam length = 18.0m Roof pitch = 14 o (1:4) B. Wind load SS-EN 1991-1-4 Designed wind loads Corner zone: 4.92 kN/m 2 Perimeter zone: 4.23 kN/m 2 Mid area: 2.03 kN/m 2 C. Snow load SS-EN 1991-1-3 Designed snow load 1.2 kN/m2 D. Roof construction Standing seam steel sheet C seam = 600mm Substrate 22mm soft wood. E. Fastener ROOF Area: Terrain type: Height: Malmö 1 12.0m Clip type Fixed clips F01S Sliding clip G01S Fastener Screw 4.5x26 KLRT Screw 4.5x26 KLRT Area Fixed zone - centre of the pitch roof Movement zones The design value of clips and screws F01S G01S KLRT Fd=620N Fd=1080N Fd=1050N γ m =1.25 (SS-EN 1993-1-3) γ m =1.25 (SS-EN 1993-1-3) k mod 1.10 γ m =1.3 (SS-EN 1995-1-1) Design value fasteners - optimal c-measures Roof zones Clips Corner zone: Perimeter zone: F01S G01S – C350 C240 C410 *Maximum distance between clips. Mid area: C300 C600* 20 Bjarnes System Clips Manual
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