Traditional Roof Truss Design

They were in effect the roof foundations.

Traditional roof truss design. Traditional truss roof design. Traditional truss roof designs. Roof trusses were essentially designed as primary structural members to span between the side walls of buildings and provide an under structure for the rafters which in turn supported the roof coverings. Rafters have a tendency to flatten under gravity thrusting outwards on the walls.

Attic trusses are made from much heavier timbers than fink trusses and therefore cost much more to buy in cost terms there is not much to choose from between an attic truss and a traditional cut roof the attic truss comes into its own when the. A truss roof using factory made trusses which are delivered to site complete and just erected. Mar 13 2016 explore pattamarat c s board roof truss design on pinterest. Just as there are many types of roofs with many roof parts there are many different types of roof trusses this extensive article explains through a series of custom truss diagrams the different truss configurations you can use for various roofs.

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 trusses usually occur at regular intervals linked by longitudinal timbers such as purlins the space between each truss is known as a bay. Traditional truss roof designs. The steeper the roof the more expensive the trusses get because the longer the boards get and the more roof area increases. They were in effect the roof foundations.

This is the distance between trusses. An attic truss gives you an empty attic space within the simplicity of a trussed roof design. Also different architectural styles will use the same type of roof. While this article focuses on configurations we also have a very cool set of illustrations showcasing the different parts anatomy of roof trusses.

A cut roof this is the traditional method of cutting the timber on site and building up the roof using rafters ridge boards joists and purlins etc the exact details being determined by the size of roof size of timbers etc. You will also incur additional costs because it is much harder to deck and shingle a roof that is 12 12 pitch versus a 4 12 roof. Intricate roofs have many parts that incorporate several of the basic roof designs such as a gable roof sitting atop a gambrel or variations of the gable valley roof design using one or a variety of different types of roof trusses also see our very detailed diagrams showing the different parts of a roof truss. The standard roof truss spacing is 2.