Rope Access programs endorsed by the worldwide rope access community, OSHA 1926.500 and ANSI Z359.8 are now available for Aggressively Pitched roofing structures. Non Invasive means for 100% access of even the most aggressively pitched roofing structures that allows for full fall protection for even the first man up so no more drawing for straws to make the initial climb to build an anchor.
https://www.youtube.com/watch?v=BAkoou0nBlQ