What is the purpose of a rafter on a roof?
Rafter. A rafter is a structural component that is used as part of a roof construction. Typically, it runs from the ridge or hip of the roof to the wall plate of the external wall. Rafters are generally laid in series, side by side, providing a base to support roof decks, roof coverings and so on. Rafters are typically made…
Where are the rafters on a valley roof?
Valley rafter: The main rafter that is found at the lowest point of a valley roof . Jack rafter: A rafter that is shortened by landing on a hip rafter or being interrupted by a dormer window . Barge rafter: On a gable end this is the outermost rafter and is sometimes used to form a roof overhang. Braced frame . Domestic roofs . Long span roof .
Which is the longest Rafter on a hip roof?
King rafter: On the side of a hip roof, a king rafter is the longest and is in line with the ridge. Valley rafter: The main rafter that is found at the lowest point of a valley roof .
What’s the difference between a valley and barge rafter?
Valley rafter: The main rafter that is found at the lowest point of a valley roof. Jack rafter: A rafter that is shortened by landing on a hip rafter or being interrupted by a dormer window. Barge rafter: On a gable end this is the outermost and is sometimes used to form a roof overhang.
Why do some buildings have exposed rafters on their roofs?
Exposed rafters are a feature of some traditional roof styles. In recent buildings there is a preference for trussed rafters on the grounds of cost, economy of materials, off-site manufacture, and ease of construction, as well as design considerations including span limitations and roof loads (weight from above).
When did trussed rafters start to be used on roofs?
Properties built during the 1960s and 1970s frequently do not have diagonal bracing and all of the necessary longitudinal bracing. Even if the roof shows no signs of any deformation it is important that such bracing is added retrospectively. Notes for specifiers and builders.
Are there fixed costs associated with truss rafter manufacture?
As the pitch flattens the forces are greatly magnified. As with any process, there are fixed costs associated with truss rafter manufacture. A truss is so much more than the sum of its parts. Any alteration to a truss once manufactured is likely to be involved and costly.
Where can I rent an exposed rafter house?
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