Prefabricated steel roof trusses, as a new type of building material, have good energy-saving and emission reduction effects. Compared with traditional concrete and wooden structures, steel is lightweight, small in size, and has lower costs in transportation, installation, and other aspects. These advantages not only reduce the consumption of construction waste and energy, but also have a smaller impact on the environment. Therefore, prefabricated steel roof trusses have great advantages in environmental protection.