When using a ladder to access a roof for PV installation, what is the proper placement angle?

When using a ladder to access a roof for PV

Multiple choice — select the best answer

ADirectly vertical against the structure
BA 2:1 ratio (the base should be 1 foot out for every 2 feet of height)
CA 6:1 ratio (the base should be 1 foot out for every 6 feet of height)
DA 4:1 ratio (the base should be 1 foot out for every 4 feet of height)

✓ Correct answer: D. A 4:1 ratio (the base should be 1 foot out for every 4 feet of height) The proper ladder angle follows the 4-to-1 rule: for every 4 feet of height, the base of the ladder should be 1 foot away from the wall or structure. This provides optimal stability and reduces the risk of the ladder tipping or sliding.

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When using a ladder to access a roof for PV installation, what is the proper placement angle?

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