Two workers were on the roof of a double-wide mobile home. The two halves were a short distance apart and the workers were placing a tarp across the opening as it was starting to snow. Instead of proper fall protection, one worker attached a rope to his tool belt and the other tied a rope around his waist. The other ends of the rope were attached to the roof.

When the workers were ready to get down from the roof, they found that the ropes were too short to reach across the ladder. They untied the ropes from their waists and slid down the snowy 5/12 pitch roof. One worker was not able to stop and slid over the edge, falling more than 3 metres (10 feet). He was seriously injured when he struck the frozen ground.

• Provide workers with a fall protection system if they could fall 3 metres (10 feet) or more. For a sloped mobile home roof, the most practical option is a fall protection system, which typically includes a full-body harness and a lifeline attached to an adequate anchor.
• Locate anchors to minimize the fall hazard when workers connect to and disconnect from the anchor. For double-wide mobile homes, consider installing an anchor at the split that can be accessed by ladder.
• Plan a safe way for workers to get on and off the roof.
• Instruct and train workers in the use of the fall protection system.
• Ensure that workers use the fall protection system provided.