The working height can be dangerous if safety precautions are not taken. You should know that even a drop of a few inches can cause serious injury. Work requiring the use of ladders or scaffolding must be studied in order to eliminate as much risk to workers.
Falls due to working at height account for nearly 500,000 accidents in Europe. 40,000 cause disability leading to permanent work disability -- which 1,000 are fatal . The construction sector is particularly affected by a higher than in other areas of activity of serious or fatal accident rate.