Canary Wharf is a major business district in east London, within the London Borough of Tower Hamlets. It is one of the United Kingdom's two main financial centres â along with the City of London â and contains many of Europe's tallest buildings, including the second-tallest in the UK, One Canada Square.[1][2]
Trusses and rafters are both assembled ahead of being installed onto the roof. Trusses are assembled in a factory using pre-engineered structures and joints. On the other hand, rafters are assembled at the construction site. As trusses are assembled in a factory, a lot of time can be saved.
The number of common rafters in a hip roof are restricted to the length of the ridge with the. rafters on either side, at the end of the ridge, being referred to as centering rafters. The rafters may be set out using a variety of methods including use of the steel square, full size. set out and by calculation.