I am looking to do some work at the peak of the gable shown in the picture. It's about 25ft to the peak from the walk way. I don't have an assistant, so I am looking for advice on how to safely place the ladder and about what size ladder to get. I have a 22ft ladder currently, and plan to rent a 30ft ladder. will this size be long enough, and what is a safe angle placement?
I have a John Deere riding lawn mower, would putting it in park with the parking brake on, and putting the ladder in front of that be a good alternate to an assistant standing at the bottom of the ladder?
I've seen people around me use ladders on the roof to access the second story setup like I have with 2x4's secured to the roof to hold the ladder from sliding, but I am trying to avoid doing that and creating any holes or damage to the roof shingles.
I appreciate any advice. Thanks!