Roofers will usually use an extension ladder to gain access to the roof and a second extension ladder with wheels and hooks to secure it to the ridge of the roof to complete the work from the roof.
How to make a roof ladder.
Welded steel roof ladders are required on many commercial buildings.
Ladders that provide ground access to a roof are made from steel aluminum or wood.
From what you wear to how you set up your ladder the little details make the difference in letting you complete your job of your roof safely.
Gather all the necessary tools before you get on the roof you have to gather and collect all the things you need in order to do the task you wanted to.
Residential roofers will most often use a combination of different ladders to install shingles or complete other roofing tasks.
For safety reasons a roof ladder must be long enough to stand at a convenient angle and extend above the edge of the roof.
Roofing contractor and american ladder institute.