In classical architecture, the tympanum is the triangular or segmental area enclosed by a pediment on the exterior of a building. The area of a triangular pediment is defined by the horizontal cornice along the bottom and the raking cornice that slopes along the sides. The area of a segmental pediment is defined by the segmental cornices along the sides. It is usual for the tympanum to be decorated with religious imagery or intricate bas-relief sculpture.
In European Gothic architecture, tympana were included over church portals and had a more vertical shape, meeting at a point at the top.
 Related articles on Designing Buildings Wiki
Featured articles and news
Report states that health of urban dwellers could be significantly improved by rethinking transport design.
The Kremlin, the centre of Russian power, includes some of the country's finest architecture.
Report launched outlining steps for a national infrastructure system that is efficient, sustainable, and delivers until 2050.
A review of Justin Bere's concise and well-presented introductory guide to Passive House.
This article describes in detail the tender process for a typical commercial construction contract.
What is energy storage, what are the different types and what is its future?
MAD Architects reveal their designs for a state-of-the-art concert hall in Beijing.
Take a look at BIG's designs for two twisting towers in New York City.
'The filing cabinet' which was labelled one of the best British buildings of the 21st century.
ICE's Bridge Engineering exhibition opens, showcasing a record-breaking LEGO bridge.