Safety is the number one priority for Russell Stark of Stark Roofing and his employees. This is the safety of you, your family, your pets, your garden, your neighbours and also his staff.
A roof is a dangerous place at any time, even for experienced tradesmen. There are very few tradesmen who don't have scars from when they lost concentration for a moment, or who didn't treated a roof with the respect it deserves.
Wet roofs are especially dangerous as it is very easy to slip, or power tools or extension cords can arc and electify the roof, gutters, metal downpipes and trestles or scaffolding. It pays therefore to not get on a roof when its wet, unless it's absolutely necessary, and to use battery-operated power tools if possible.
When using electrical cords at any time, make sure they are in good condition, double insulated, have been recently tested and tagged and use a safety pack every 20 metres to cut electrical flow if necessary.
As a rule of thumb, the steeper the pitch, the more dangerous a roof can be. It is important to never slide down a roof instead of walking. This is because you build up momentum as you slide, making it difficult to stop before you reach the edge.
From personal experience, I would say that sliding ladders are the most common cause of accidents or why a person becomes stranded on a roof. When cleaning gutters or climbing on a roof, always secure your ladder with an ocky strap or rope to a gutter bracket so that the ladder doesn't slide and tip you off or leave you stuck on the roof without any safe way of getting down.
Before the advent of mobile phones and also before finding out how important doing this small thing is, I was once doing a quote when no one was home at a potential client's house. You can guess what happened: a high wind sprang up out of nowhere, blowing my ladder down and I was stuck. An elderly woman, who was walking passed the house saw my predicament and desperately tried to stand the ladder up for me, but it was too heavy for her, so I had to wait 2 hours for the owner to come home and rescue me.