Also called a French roof or curb roof, a mansard roof is a four-sided gambrel-style hip roof characterized by two slopes on each side. The lower slope, which has dormer windows, is at a steeper angle than the upper.

What is a mansard design?

In simplest terms, a mansard roof, also known as a French or curb roof, is a combination of a hip and a gambrel roof in regards to design. If you’re not entirely familiar with a gambrel, it’s considered to be a modified version of a gable roof, but unlike a gable, it has two slopes on each side.

What does the word mansard mean?

Definition of mansard : a roof having two slopes on all sides with the lower slope steeper than the upper one — see roof illustration.