A mansard roof is a four-sided roof design characterized by two slopes on each side. The lower slope is steeper, while the upper slope is more gentle. This unique structure allows for additional living space in the attic, making it a popular choice for residential buildings, especially in urban areas. The style originated in France during the 17th century and is named after the architect François Mansart. Mansard roofs are often associated with the Second Empire architectural style, which features ornate details and a distinctive silhouette. This design not only enhances aesthetic appeal but also maximizes usable space.