Roof
Roof
A roof is the top covering of a building, including all materials and constructions necessary to support it on the walls of the building or on uprights, providing protection against rain, snow, sunlight, extremes of temperature, and wind.[1] A roof is part of the building envelope.
Types and forms[edit | edit source]
Roofs can be of many forms, including but not limited to the following:
- Flat roof: A flat roof is a roof which is almost level in contrast to the many types of sloped roofs.
- Gable roof: A gable roof is a type of roof design where two sides slope downward toward the walls - and the other two sides include walls that extend from the bottom of the eaves to the peak of the ridge.
- Hip roof: A hip roof, hip-roof or hipped roof, is a type of roof where all sides slope downwards to the walls, usually with a fairly gentle slope.
- Mansard roof: A mansard roof is a four-sided gambrel-style hip roof characterized by two slopes on each of its sides with the lower slope, punctured by dormer windows, at a steeper angle than the upper.
Materials[edit | edit source]
Roofing materials may be placed on top of a secondary water-resistant material called underlayment. Materials used for roofing include:
- Asphalt shingle: Asphalt shingles are a roofing material consisting of individual overlapping elements.
- Metal roof: A metal roof is a roofing system made from metal pieces or tiles characterized by its high resistance, impermeability and longevity.
- Slate: Slate is a fine-grained, foliated, homogeneous metamorphic rock derived from an original shale-type sedimentary rock composed of clay or volcanic ash through low-grade regional metamorphism.
See also[edit | edit source]
- List of commercially available roofing materials
- Domestic roof construction
- Stone slab roof
- Cool roof
- Green roof
References[edit | edit source]
| Roof Resources | |
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