In accordance with the 2017 NEC, what is the minimum distance required between a PV array and the roof ridge to allow for firefighter access?

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Multiple choice — select the best answer

A24 inches
B18 inches
C48 inches
D36 inches

✓ Correct answer: D. 36 inches NEC 690.12(D) requires at least 3 feet (36 inches) of clear space between a PV array and the roof ridge to allow firefighter access and ventilation in case of emergency.

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In accordance with the 2017 NEC, what is the minimum distance required between a PV array and the roof ridge to allow for firefighter access?

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