Flat roofs can cantilever into daring overhangs for shade protection and solar gain control.
Roof flat one side.
The sections of roof either side of the vertical wall are typically sloping allowing a large amount of natural light into the windows.
A gable roof with one side longer than the other and thus closer to the ground unless the pitch on one side is altered.
A pitched extension of a main roof similar to a lean to but an extension of the upper roof.
The workhorse of colonial america the familiar saltbox is a building that features a long pitched roof on one side similar to the lid on a salt storage box.
The formula for a simple span beam includes the square of the span think of a 16 foot height having to carry four times the load of eight foot.
From a structural aspect building columns act as beams to resist wind loads.
If one of the sloping sides ends in a wall that s shorter than the wall on the other side it s a saltbox there are also terms to distinguish gabled roofs that show their slanting side on the front side gabled from those where the pointed wall is prominent front gabled.
Their attractiveness traces to the desire to make a two story building function as a one story building to reduce the tax bill.