Lantern roof
The lantern roof is a roof shape similar to the gable roof . In buildings, it also consists of two oppositely inclined roof surfaces that meet at the highest, horizontal edge, the roof ridge . In contrast to the gable roof, however, the roof areas are interrupted by a vertical section of the facade and continued again offset vertically.
advantages
- The section of the facade created by the offset offers the possibility of accommodating vertical lighting and ventilation openings in the roof skin.
- With suitable dimensioning, an increase in room height can be achieved without affecting the spacing area.
Lantern roofs on railroad cars
Lantern roofs, also known as skylight roofs, were widely used in earlier times on railroad , subway and tram cars . It was customary to put a lantern roof on passenger cars until the interwar period. On the one hand, the skylights ensured a good oxygen supply to the kerosene lamps that were installed in the roof area. On the other hand, the higher roof enabled passengers in the center aisle of the vehicle to stand upright and walk despite the protruding lighting fixtures .
In addition, the skylights built into the lantern roofs ensured greater brightness in the passenger compartment. In most cases, these windows in the lantern roof could also be tilted or folded, which ensured better ventilation of the passenger compartment, especially on hot days.
See also
Web links
- www.tram-bus-basel.ch Lantern roof on a Basel tram car