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;<span id="Roof">Roof</span>
;<span id="Roof">Roof</span>
:[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. ISO 6707-1(2004) classifies
::'''flat roof''' is a roof either horizontal or with a slope of 10° or less.
::'''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 %)
::'''pitched roof''' is a roof, the slope of which is greater than 10° (approximately 15 %)