A roof comprising a series of skillion roofs with vertical surfaces glazed and facing away from the equator. The sloping surfaces are opaque, shielding the workers and machinery from direct sunlight. This sort of roof admits natural light into a factory.
British engineer and architect William Fairbairne is credited with the first designs for what he termed the shed princile possibly as early as 1827. It was rapidly adopted during the industrial revolution for the many new daylignt factories where good natural lighting was essential in the manufacturing process and large areas of enclosed space were required to house the machinery. The first documented example can be found on the Weaving Shed (and perhaps also the Combing Shed) of Titus Salt's Saltaire Mills near Bradford. .[1]
An example would be Morris Engines factory.