- ❖ Traditional roof forms
- Double (multiple) gabled
- Double (multiple) hipped
- Half Hipped
- Half hip and gablet
- Lean to
- Mono pitch
- ❖ Flat roofs
- ❖ Shallow roofs
- ❖ Dormers
- ❖ Parapets
- ❖ Curved
- ❖ Dome
- ❖ Specialized roofs
- ❖ Modern Roofs
- Hyperbolic parabaloidal
- ❖ Unusual roofs
- ❖ Further reading
Also known as a Barn Hip in vernacular and traditional buildings.
Not to be confused with Gambrel, the mansard is double pitched to all four sides.
Usually in mono pitch form, flat roofs are typically used in domestic house extensions, tower blocks, and service, public and council buildings where cost of build and ease of maintenance is a priority. This included such buildings as fire stations, schools and electricity substations. A roof is usually considered flat at 10° or less.
Popular due to their lower cost, low roofline and smaller volume, though not always popular in terms of aesthetics.
Simple corrugated metal, plastic or asbestos flat or shallow roof, used on agricultural buildings and warehouses.
A Dormer, is separate smaller roofed structure protruding above a main roof, providing additional windows and space in the roof space or attic of a building.
Dormers are often retrospective additions to a building, the owner wishing to make more from their unused roofspace. In recent decades roof lights have often been added instead of dormers due to their low cost of build.
Gable fronted dormer
Flat roof dormer
Sometimes known as a Box dormer
Round topped dormer
Circular windowed dormer
An Oculus dormer is typical of French classical architecture, brought to Great Britain.
Used in combination with the roof types above. The main walls of the building continues up hiding the eaves of the roof. Often used on taller buildings, where maintenance to eaves is made more difficult. They were made popular in London after the building act of 1707 was introduced which banned the projecting wooden eaves to reduce the risk of spread of fire to neighbouring buildings. The style became fashionable during Georgian times.
Nowadays there are a large choice of materials used in roof construction, including different metals and glass which can produce interesting and imaginative shapes.
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