Construction is a hazardous occupation and at construction sites, dynamic activities take place and employees tend to be exposed to a variety of hazards such as working on rooftops while using scaffoldings, exposure to substantial constructions equipment, falling of heavy objects due to mishandling, injury due to lifting heavy objects, death due to electrocution. Every year almost 1000 construction workers are killed on the job and over 1/3 of those fatal injuries are caused by falls from elevation.