Many pros shingle in a vertical line up the roof because it s much faster.
Shingling a steep roof.
Step 3 replacing rotten plywood.
Step 4 determining the amount of shingles.
Known in the trade as vertical racking or staggering this how to lay shingles method enables the roofer to install a single column of shingles all the way to the peak without the wasted back and forth motion necessary to fill several rows of stair steps.
Scaffolding and rappelling gear will provide the safety you need.
You will need the right equipment to be safe while you work.
Starting at the bottom of the roof lay down a single starter course shingle allowing about an inch to clear the edge of the roof.
Step 1 safety.