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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.
Two king post trusses linked to support a roof. 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.
There are 118 decoratively-carved angels, all made from oak, on the double-hammer beam roof. Some hold musical instruments and others represent saints, holding the symbols of their martyrdom.
Jones solved both requirements by basing the roof construction on medieval 14th century baronial architecture. It features wall-posts supporting moulded hammer-beams, and curved braces. The king posts are hidden above the ceiling, which is on the level of the horizontal ties, these stop the roof collapsing in upon itself.
Working with hand axes to fashion hundreds of tons of oak beams for the framework of Notre Dame's new roof has, for them, been like rewinding time. “It’s a little mind-bending sometimes," says Pe
Availability of timber affected methods of roof construction across Europe. It is thought that the magnificent hammer-beam roofs of England were devised as a direct response to the lack of long straight seasoned timber by the end of the Medieval period, when forests had been decimated not only for the construction of vast roofs but also for ...
Hugh Herland (c. 1330 – c. 1411) was a 14th-century medieval English carpenter. [1] He was the chief carpenter to King Richard II. [2]One of his best known pieces is the hammer-beam roof at Westminster Hall, regarded as one of the greatest carpentry achievements of the time.
A cruck or crook frame is a curved timber, one of a pair, which support the roof of a building, historically used in England and Wales. This type of timber framing consists of long, generally naturally curved, timber members that lean inwards and form the ridge of the roof. These posts are then generally secured by a horizontal beam which then ...