In classical, neoclassical and baroque architecture, a pediment is the triangular gable that forms the end of a pitched roof. It is placed above the horizontal entablature which is typically supported by columns. It is also sometimes seen as the top element of a portico.
In classical Greek temples, the pediment was the crowning feature of the front elevation, with the tympanum (the area within the pediment) being decorated with relief sculptures depicting mythological figures and scenes.
There are a number of variations of the traditional pediment:
- The segmental or arch form in which the angular slopes of the cornice are replaced by a circle segment.
- The broken pediment in which the raking cornice is left open at the apex.
- The open pediment in Georgian architecture, in which the pediment is open along the base.
- The ‘swan-necked pediment’, where the raking cornice takes the form of two S-shaped brackets facing one another.
 Related articles on Designing Buildings Wiki
- Architectural styles.
- Barrel vault.
- Classical orders in architecture.
- Cornice coving and architrave definitions.
- Elements of classical columns.
- Flying buttress.
- Pendentive dome.
- Trompe l’oeil.
 External references
This week's employment opportunities totalling more than £50K of annual income. For applicants or employers - IHBC Jobs etc is the first place to visit.
Visit the Speakers’ webpage which highlights speakers and topic areas, so now prospective delegates can see the theme and topic areas relate to their CPD priorities.
Historic Environment Scotland has launched a new ‘Guidance Note, Managing Change in the Historic Environment’ on windows as part of a series of non-statutory notes.
Historic England commissioned research in 2017 into whether their written advice and guidance provides the right information to the right audiences in the most effective way.
The Culture Media and Sport Select Committee reports on the potential impact of Brexit on the creative, tourism and digital industries.
Designs for spherical concert venue are set to add even more diversity to the capitals ‘suggestive skyline’, the Guardian reports.