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A portion of the arch surrounding the keystone is called a crown. [ 4 ] Keystones or their suggested form are sometimes placed for decorative effect in the centre of the flat top of doors, recesses and windows, so as to form an upward projection of a lintel , as a hallmark of strength or good architecture.
An entrance door for excluding drafts from an interior of a building. A revolving door typically consists of three or four doors that hang on a center shaft and rotate around a vertical axis within a round enclosure. Rib vault The intersection of two or three barrel vaults. Ridge board
Transom windows which could be opened to provide cross-ventilation while maintaining security and privacy (due to their small size and height above floor level) were a common feature of apartments, homes, office buildings, schools, and other buildings before central air conditioning and heating became common beginning in the early-to-mid 20th century.
Cornice of Maison Carrée (Nîmes, France), a Roman temple in the Corinthian order, with dentils nearest the wall.. In Ancient Greek architecture and its successors using the classical orders in the tradition of classical architecture, the cornice is the topmost element of the entablature, which consists (from top to bottom) of the cornice, the frieze, and the architrave.
Side door at Wimpole Hall, Cambridgeshire, by James Gibbs. A Gibbs surround or Gibbs Surround is a type of architectural frame surrounding a door, window or niche in the tradition of classical architecture otherwise known as a rusticated doorway or window. The formula is not fixed, but several of the following elements will be found.
A doorway may include side lights and/or a transom beside or above the door; the framing around the door and these may be considered to be part of one door frame or may better be termed a door surround. The architectural term "surround" generally refers to a larger area around a doorway or window which provides a larger framing.
The so-called "Treasury" or Al-Khazneh, a 1st-century rock-cut tomb in Petra, Jordan, is a famously extreme example, with not merely the pediment, but the whole entablature, very "broken" and retreating into the cliff face. [13] Broken pediments where the gap is extremely wide in this way are often called "half-pediments".
Doors which slide inside a wall cavity are called pocket doors. This type of door is used in tight spaces where privacy is also required. The door slab is mounted to roller and a track at the top of the door and slides inside a wall. Sliding glass doors are common in many houses, particularly as an entrance to the backyard.