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A hammer-beam is a form of timber roof truss, allowing a hammerbeam roof to span greater than the length of any individual piece of timber.In place of a normal tie beam spanning the entire width of the roof, short beams – the hammer beams – are supported by curved braces from the wall, and hammer posts or arch-braces are built on top to support the rafters and typically a collar beam.
A barrel vault, also known as a tunnel vault, wagon vault or wagonhead vault, is an architectural element formed by the extrusion of a single curve (or pair of curves, in the case of a pointed barrel vault) along a given distance. The curves are typically circular in shape, lending a semi-cylindrical appearance to the total design.
Key:1: ridge beam, 2: purlins, 3: common rafters. This is an example of a "double roof" with principal rafters and common rafters. A timber roof truss is a structural framework of timbers designed to bridge the space above a room and to provide support for a roof.
Arching above a side aisle roof, flying buttresses support the main vault of St. Mary's Church, in Lübeck, Germany.. The flying buttress (arc-boutant, arch buttress) is a specific form of buttress composed of a ramping arch that extends from the upper portion of a wall to a pier of great mass, in order to convey to the ground the lateral forces that push a wall outwards, which are forces that ...
Gothic rib vault ceiling of the Saint-Séverin church in Paris Interior elevation view of a Gothic cathedral, with rib-vaulted roof highlighted. In architecture, a vault (French voûte, from Italian volta) is a self-supporting arched form, usually of stone or brick, serving to cover a space with a ceiling or roof.
Guastavino tile vaulting in the City Hall station of the New York City Subway Guastavino ceiling tiles on the south arcade of the Manhattan Municipal Building. The Guastavino tile arch system is a version of Catalan vault introduced to the United States in 1885 by Spanish architect and builder Rafael Guastavino (1842–1908). [1]
The top ends of the rafters often meet at a ridge beam, but may butt directly to another rafter to form a pair of rafters called a couple. Depending on the roof covering material, either horizontal laths , battens , or purlins are fixed to the rafters; or boards, plywood , or oriented strand board form the roof deck (also called the sheeting or ...
Fan Vault A conoid architectural element in which a series of equidistant curved ribs projects radially from a central axis, often a vertical wall support such as a column. Fan vaults are particularly connected with the English Gothic style. Fascia 1. A board attached to the lower ends of rafters at the eaves.