18.0m Calculation examples Perimeter zone Mid area Corner zone 7.5m Fixed zone 3.0m 7.5m Zone type Fixed zone Fixed zone Moveable zone Moveable zone Moveable zone Area Roof centre mid area Roof centre perimeter zone Corner zone: Perimeter zone: Mid area: Clip type C-measurement F01S C=300mm F01S C=240mm G01S C=350mm G01S C=410mm G01S C=600mm Loads in the roof pitch Snow loads can cause a force of 3 kN for each seam and the total length of the roof. Fixed clips should be mounted at a c-measure of 300mm in the fixed zone. This means that there should be 11 fixed clips in the fixed zone. Each clip can take up to 0.27 kN which is transferred to the substrate. Thermal movements. An installation temperature of +10 o C gives an average length change of about +7mm. in the summer and -5mm in the winter. G01S takes move- ment of up to ± 10mm NOTE! Calculation only considers clip fasteners. Estimations of strip width should be carried out in accord- ance with the sheet manufacturer’s guidelines. If the strip width shrinks, the fastener should be adapted to the new width. Bjarnes System Clips Manual 21
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