What type of portable ladder has permanently attached curved metal hooks?

A roof ladder is specifically designed with permanently attached curved metal hooks, which are essential for securing the ladder to a roof or other elevated surfaces. These hooks help to stabilize the ladder, allowing firefighters to safely maneuver and work on sloped or pitched roofs. The design of the roof ladder, with its flat rungs and angled hooks, is tailored for this particular function, ensuring that it remains securely in place while providing a stable platform for firefighters. This feature is crucial in scenarios that involve climbing and operating on roofs, where safety and stability are paramount. Other types of ladders, while useful for various functions, do not have this specific feature and are designed for different uses, such as reaching higher spaces or for general climbing.