A gambrel is a type of roof design characterized by two slopes on each side, with the lower slope being steeper than the upper one. This architectural style is commonly seen in barns and traditional homes, particularly in the United States. The gambrel roof allows for more headroom and usable space in the upper levels of a building. The design is often associated with Dutch Colonial architecture and is popular for its aesthetic appeal and practicality. Gambrel roofs are typically made from materials like wood or metal and can be found in various styles, contributing to the overall character of a structure.