Latest update: The tech showed up today saying he was ready to do the job. Got about halfway up the roof and came sliding back down (he did stop at the ladder, luckily did not fall all the way off). Resulting in much skin loss on hands, an ambulance and a trip to the hospital. The supervisor for my area calls and says he has a couple new guys who can come out and do the install if I am comfortable with that. I let him know that I am not, let him know I would contact the original installer instead. Feel super bad for the guy who hurt himself. Guess we both learned that a 45 degree pitch is best tackled by super seasoned professionals. Hope the guy is OK.