Analysis of information sources in references of the Wikipedia article "Mansard roof" in English language version.
Mansard: A hipped roof with two pitches; the lower is the steeper, while the pitch approaching the ridge is much gentler, sometimes almost flat. Associated with Second Empire architecture.
Mansard: A roof made with slopes of different pitches, usually providing an upper floor of usable space within a roof structure.
mansard – two slopes on each of its four sides; one part very steep and curved, often with dormers