The Craft-Lock roof sheeting system is the result of years of research and wide experience in the roofing industry. The development of the Craft-Lock sheet was aimed at eliminating disadvantages inherent in many of the existing types of roof profiles. The result is a unique long span profiled sheet that can be erected by unskilled labour with the minimum of tools, to ensure a leak proof roof.
Profile dimensions: Effective cover width = 385 mm
Depth of profile = 41,0 mm
Resistance against negative loading (suction).Negative wind loads for roofs to generally do not exceed 1.5 kN/m. Practical tests to verify these values have been carried out. Analysis shows that the Craft-Lock interlocking fixing system can readily resist negative loads in excess of 3 kN/m. Practical tests to verify these values have been carried out.
Profile properties.
The following table reflects the profile properties of Craft-Lock sheets, based on a theoretical analysis. Actual loading tests have been conducted to determine practical load span data. (Test reports are available on request)
- ISQ 300 conforms to SABS 0162/2
- Values based on concentrated positive or negative loads of 1,5 kN/m2 and allow for deflections of 1/200
Minimum Pitch: 1°
Water carrying capacity. The deep trough of the Craft-Lock® profile maximizes the water carrying capacity
Trough section area/sheet = 10 760 mm2
Trough section area/m width = 28 330 mm2
Volume of water/m2 of sheet = 28, 33 litres
(without covering ribs)
