How do roofers not fall?

How to Properly Use a Roof Safety Harness - The Family Handyman

Roofing In Your Local Area – Roof Now Information
When you're not using your power tools, secure them with short lengths of rope or Bungee cords. Keep hand tools and supplies in a 5-gallon bucket hung on a roof bracket. Carefully position ropes and extension cords so they're not underfoot; they're very slippery. Stay off slate and tile roofs.

Is roofing one of the hardest jobs?

Survey Reveals Roofing Considered Toughest Contractor Job in the ...

Roofing – Online Business
Roofing topped the list as the most physically demanding job, with 13% of contractors ranking it above all others. ... A total of 20% of respondents said roofing is the toughest job and demolition (15%) is the second toughest.Jan 9, 2020