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:[http://en.wikipedia.org/wiki/Roof'''Wikipedia:'''] A roof is the covering on the uppermost part of a building. A roof protects the building and its contents from the effects of weather and the invasion of animals. Structures that require roofs range from a letter box to a cathedral or stadium, dwellings being the most numerous.
:[http://en.wikipedia.org/wiki/Roof'''Wikipedia:'''] A roof is the covering on the uppermost part of a building. A roof protects the building and its contents from the effects of weather and the invasion of animals. Structures that require roofs range from a letter box to a cathedral or stadium, dwellings being the most numerous.
:'''ISO 6707-1(2004):''' Construction that encloses a building from above.
:'''ISO 6707-1(2004):''' Construction that encloses a building from above.
::'''flat roof''' is a roof either horizontal or with a slope of 10° or less.
::'''pitched roof''' is a roof, the slope of which is greater than 10° (approximately 15 %)
::'''shed roof''' or '''monopitch roof''' is a pitched roof that has only a single plane
::'''lean-to roof''' i a monopitch roof that has its upper edge attached to, and supported by, a wall that extends above the level of the roof, or is supported by structural member(s) next to or attached to a wall
::'''shell roof''' or '''domed roof''' is a roof formed of a thin curved structural slab
::'''mansard roof''' is a pitched roof with two inclined planes on each side of the ridge, the steeper of the two starting at the eaves
::'''gable roof''' is a pitched roof that terminates at one or both ends as a gable
::'''hipped roof''' or '''hip roof''' is a pitched roof with hip end or ends
::'''sawtooth roof''' is a series of pitched roofs, each with one inclined plane steeper than the other and fully or partially glazed
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