Step 2 removing the old shingles.
Shingling a steep roof.
You will need the right equipment to be safe while you work.
How to reroof a steep pitched roof.
Scaffolding and rappelling gear will provide the safety you need.
Step 4 determining the amount of shingles.
Step 1 safety.
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.
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.