A roof truss is a structural framework designed to support the roof of a building. It is typically made from wood or metal and consists of triangular units that distribute weight evenly. This design helps to create a strong and stable roof while allowing for open spaces below, making it popular in residential and commercial construction. Trusses come in various shapes and sizes, such as the king post truss and queen post truss, each suited for different architectural needs. They are essential for ensuring the roof can withstand environmental forces like wind and snow, contributing to the overall safety and durability of the structure.