Go for it!. one thing is that you have to do something because somebody obligate you to do so. Completely different when you enjoy doing something, you know how to do it and work in a SAFE environment. however you are not just hanging lights, you are manipulating electric cables, but everybody does it. and also consider that climbing migh be necesary, if not, just have fun and don t make it noticeable as a bussines but as a colalborative task. Tell costumers what movements you are going to preform before hand so you migh have extra assistance from them when needed.
Generally doing work in exchange 4 coin of the realm is encouraged 4 children. As far as the legality of your being on the roof, I dunno that. U might wanna check 2 see if child labor laws are enforced where U live.All best in your enlightenment income!Timothy:o)
if you put them up, people will expect you to take them down. be prepared for that.
Sounds like a great idea just be careful.
No you do not need a permit.Be safe.
Just be safe brother :)