To use a building hoist, first ensure it's properly installed and inspected. Familiarize yourself with its controls and safety features. Load materials evenly onto the platform, ensuring not to exceed weight limits. Activate the hoist by pressing the 'up' button to lift the materials. Maintain a safe distance while the hoist is in motion. Once at the desired floor, press the 'stop' button, then unload the materials. Always follow the manufacturer's guidelines and safety protocols to prevent accidents.