Step 1: Aluminum vs Steel
On the other hand, if you'll be working alone or with unskilled help, or if you're working 20 to 30 ft. above the ground, aluminum might be a better choice. It's easier to assemble and drive fasteners through, and much easier to lift from one end,. These are important advantages when you're clinging to a ladder. Because aluminum doesn't rust, warranties focus on paint durability, usually 20 to 25 years.