That's me painting on a 10-12 pitch roof. Doesn't get any steeper than that. The Pitch Pal works like a charm. With twenty five years in the painting business, this was the one tool I couldn't find, but really needed. That's why I developed the Pitch Pal. Whether you need the Pitch Pal for painting, roof repair tar, water for window cleaning or just need to put something in an empty bucket. Pitch Pal will do the job! I Guarantee It, Mel Drucker