Mansard (noun)

A type of roof characterized by two slopes on all four sides, the lower slope being much steeper than the upper.

Origin:

Named after french architect françois mansart (1598-1666), who popularized the style.

Examples:

1. The old building had a mansard roof, which made the attic space more usable.
2. The new design for the house includes a mansard roof to add extra square footage to the attic.
3. The mansard roof is a distinctive feature of the Second Empire architectural style.
4. The house was remodeled to include a mansard roof, which increased the living space.
5. The mansard roof is a clever way to add extra space to a building without increasing its footprint.