Roof

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.

In most countries a roof protects primarily against rain. In Persia the citizens used their roofs for milling wheat,farming,gardens and extra space. Depending upon the nature of the building, the roof may also protect against heat, sunlight, cold, snow and wind. Other types of structure, for example, a garden conservatory, might use roofing that protects against cold, wind and rain but admits light. A verandah may be roofed with material that protects against sunlight but admits the other elements.

The characteristics of a roof are dependent upon the purpose of the building that it covers, the available roofing materials and the local traditions of construction and wider concepts of architectural design and practice and may also be governed by local or national legislation.

Read more about Roof:  Design Elements, Form of A Roof, Parts of A Roof, Gallery of Significant Roofs

Famous quotes containing the word roof:

    Don’t want no money from you Ethan, no money, Marty. Just a roof over old Mose head and a rocking chair by the fire, my own rocking chair by the fire.
    Frank S. Nugent (1908–1965)

    The poorest man may in his cottage bid defiance to all the forces of the Crown. It may be frail—its roof may shake—the wind may blow through it—the storm may enter—the rain may enter—but the King of England cannot enter!—all his forces dare not cross the threshold of the ruined tenement!
    William Pitt, The Elder, Lord Chatham (1708–1778)

    Come into animal presence.
    No man is so guileless as
    the serpent. The lonely white
    rabbit on the roof is a star
    twitching its ears at the rain.
    Denise Levertov (b. 1923)