In architecture

Architecture

Architecture is both the process and product of planning, designing and construction. Architectural works, in the material form of buildings, are often perceived as cultural and political symbols and as works of art...

, a sudatorium is a vaulted sweating-room (sudor, sweat) of the Roman baths or thermae

Thermae

In ancient Rome, thermae and balnea were facilities for bathing...

. The Roman architectural writer Vitruvius

Vitruvius

Marcus Vitruvius Pollio was a Roman writer, architect and engineer, active in the 1st century BC. He is best known as the author of the multi-volume work De Architectura ....

 (v. 2) refers to it as concamerata sudatio.

In order to obtain the great heat required, the whole wall was lined with vertical terra-cotta flue

Flue

A flue is a duct, pipe, or chimney for conveying exhaust gases from a fireplace, furnace, water heater, boiler, or generator to the outdoors. In the United States, they are also known as vents and for boilers as breeching for water heaters and modern furnaces...

 pipes of rectangular section, placed side by side, through which hot air and smoke from the suspensura

Suspensura

Suspensura, the architectural term given by Vitruvius to piers of square bricks that supported a suspended floor of a Roman bath covering a hypocaust cavity through which the hot air would flow....

passed to an exit in the roof.

When Arabs and Turks overran the eastern Roman Empire, they adopted and developed this feature in their baths or hammams.
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