When inspecting a roof that is safe to walk on, what is the minimum method of inspection?

The correct method for inspecting a roof that is safe to walk on is to physically walk on the roof. This hands-on approach allows the inspector to closely examine the roof's condition, identifying issues that may not be visible from a distance. Walking on the roof provides direct access to its surfaces, enabling the inspector to check for damage, wear, or other concerns such as blocked drains or improperly installed flashing.

In contrast, viewing the roof from the ground could potentially miss critical detail that can only be assessed from an elevated position. Observing from nearby trees or using binoculars limits the inspector’s ability to evaluate the roof's structural integrity and condition adequately. These methods may help with an initial overview but do not replace the thorough assessment that walking on the roof offers when it is deemed safe.