Again, we won’t be rigging these systems, but we should be aware of the type of materials and devices that are being used. Swing stage scaffold manual#Now we can use flame-cut on a manual system and the rope fall protection, but it would be more expensive and heavier to haul up. Remember, the forged type hook does not meet the safety factors for electric scaffold systems, therefore we must use the flame-cut hooks. I cannot use a flame-cut hook on one side and forged on the other side for an electronically operated swing scaffold. What does this mean? If I use as flame-cut hook on one side of the scaffold, I need to use the flame-cut hook on the second anchor point. Lastly, with two-point anchor systems, we need to make the two “sides” identical. The diameter of the hook is dictated by the structural engineer with the help or recommendation of a licensed rigger. These contact points are the face, the top edge of the hook and the rear edge of the hook. Secondly, when we use the hooks, regardless of which type, we need to maintain three points of contact between the hook and the parapet wall. The flame-cut hook can be used on all suspended systems regardless if manual or electronic, because it meets all the required safety factors associated with both systems. Remember, the forged hook can ONLY be used on manual operating systems and rope fall protection. First and foremost, use the correct hook for the proper scaffold system. Regardless of which type of hook you use, there are certain criteria that should be adhered to when using these types of anchor systems. These hooks are also much heavier than their counterpart forged hooks, therefore the practical application of these hooks only range from 9 to about 42-inches for their openings. Unlike the forged hooks, these hooks are designed to handle the forces that may be associated with electric swing scaffold. It can be cut from different thicknesses and also different alloys. This type of hook is acetylene-burned from a sheet of steel. The second type of roof hook which is more commonly used is the flame-cut hook. These hooks range in size openings of 9 to 60 inches. It does not meet the required safety factors and therefore can only be used for rope fall protection anchors or manual swing stage systems. A very important thing to understand regarding forged hooks is that it is not designed to handle the forces associated with today’s electric swing stage systems. The other end of the hook has an iron ring attached through a forged hole, which is used for the tie back of the hook. A loop is forged at the suspension end in which the scaffold wire rope is attached and then attached to the stirrup. It is made from a single piece of mild iron and is forged into the shape and size needed. The first type of roof hook is called a forged hook. The hooks are both used over the parapet wall and then tied back to a substantial object or structural member of the building or roof. Roof hooks come in two different “flavors,” and both are used in different applications.
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