Roof Safety Wind

Exterior egress beyond ladders staff should exercise situation awareness when accessing the roof via hatches elevators penthouse doors scaffolding or power equipment such as scissor lifts and aerial work platforms says brad richardson a certified safety professional and director of environmental health and safety for d.

Roof safety wind.

High winds can cause downed trees and power lines flying debris and building collapses which may lead to power outages transportation disruptions damage to buildings and vehicles and injury or death. Jobs involving aerial lifts cranes and sheathing materials must be properly evaluated with wind conditions. The occupational safety and health administration normally considers winds exceeding 64 4 kilometers per hour 40 miles per hour or 48 3 kilometers per hour 30 miles per hour if the work involves material handling as meeting. Roofing safety all employers in the construction industry must have a safety program.

Warning line safety monitors. For buildings with low slope roofs less than 2 12 slope the wind speed at eave height is used. Roof holes unguarded skylights and poorly covered holes. Weather conditions ice snow and wind are always a hazard on a roof if the shingles or other surfaces are slippery.

Roof design wind pressures are determined using the wind speeds at the mean roof height of the building i e average of the eave and ridge heights. Weather conditions such as wind and rain for example being blown over the edge or slipping on a wet roof surface trip hazards for example roof components and protrusions and overbalancing or losing grip on steep pitched or sloping roofs. Contractors and employers who perform construction work must comply with standards in 29 cfr 1926 subpart c general safety and health provisions as well as other applicable photo courtesy of acta safety peterson dean roofing. Membrane roofs are especially slippery in wet conditions and should be avoided under these circumstances.

Note to the definition of high wind. Note to the definition of high wind. A high wind warning is issued when sustained winds of 40 mph or greater or gusts to 58 mph or greater are expected. The occupational safety and health administration normally considers winds exceeding 64 4 kilometers per hour 40 miles per hour or 48 3 kilometers per hour 30 miles per hour if the work involves material handling as meeting this criteria unless the employer takes precautions to protect employees.

Preparing for high winds.