In a perfect scenario as illustrated in the attached photos we see a roofer standing at the edge of a parapet. The roofer has no fall protection of any kind. Give the roofer credit for wearing protective clothing necessary as a means to protect his body while applying a coating over a spray foam roof, but that protective suite will not stop him from falling.
The distance from the top of the parapet to the ground is approximately seventeen (17) feet. The ground below is a hard surface which would be unforgiving to a falling human body.
A slight slip of either feet. A tangling of the boots in the protective covering. A sudden distraction. A sudden gust of wind. All of these situations can cause the roofer to loose his balance and fall to the ground below.
Beyond any OSHA requirement, and the obvious serious injury or even fatality which would result in the roofer falling to the ground below, the shock and grief that will affect to his fellow roofers, family, and friends is beyond measure.
It is for all the right reasons, and logical conclusion, that fall protection is a necessary safety measure. The code allows a number of ways to protect the roofer or anyone else working above ground. Simple steps can reduce the risk of injury and prevent long term disability and even death.