What is the correct ladder tip height when placed at a window?

When placing a ladder to access a window, the ideal ladder tip height is level with the window sill. This positioning facilitates easier and safer entry and exit for firefighters or occupants. If the ladder is positioned below the window sill, it can hinder access and may add complications during an emergency. Conversely, placing the ladder above the window frame may pose a risk of injury or make it difficult for users to safely maneuver into or out of the window.

Setting the ladder at a 45-degree angle, while a good practice for stability, does not specifically address the vertical height-related needs for accessing the window. Positioning the tip of the ladder level with the window sill helps ensure that the ladder is both safe and effective for its intended use.