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.
Roof Sheathing Materials and More. The skeleton of a roof is formed with rafters or trusses, generally spaced 16 inches or 24 inches apart from the center of one rafter to the center of the next. To stabilize the rafters, support the roofing material, and hold the entire roof together, roof sheathing is installed.