How far above the point of support must a ladder extend when accessing the roof?

When accessing a roof with a ladder, it is essential for the ladder to extend at least 3 feet above the point of support. This requirement ensures that there is enough height for the individual to safely grip the top of the ladder while transitioning onto the roof, thus promoting stability and reducing the risk of falling.

The standard guidance on ladder usage emphasizes this aspect to enhance safety when climbing or descending. The additional height provided by the 3 feet of extension helps create a secure handhold and minimizes the likelihood of missteps, making it a critical requirement in ladder safety protocols.