What is the minimum height requirement for the lowest part of the clear opening of a window to determine the need for fall protection?

The minimum height requirement for the lowest part of the clear opening of a window is 24 inches. This height is critical in determining the need for fall protection because it establishes a boundary for creating safety measures to prevent falls from elevated areas.

When the clear opening of a window (or any opening) is below 24 inches from the walking surface, it poses a greater risk of individuals accidentally falling through it, especially in residences or energy-efficient buildings where windows may often be left open for ventilation. Therefore, maintaining a height of 24 inches helps ensure that the opening is less likely to pose a fall hazard, prompting the implementation of protective features such as guardrails or screens if it does not meet this height requirement.

Understanding this height is essential for compliance with safety standards and ensuring the protection of occupants in buildings.