Traditional Timber Roof Design

The space between each truss is known as a bay.

Traditional timber roof design. Traditional timber joints in oak truss design timber cross beams tie beams principle rafters king posts queen posts collars and other members were and are usually connected together with mortice and tenon joints half housed joints lapped joints or scarf joints. 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. The finished structure is readily adaptable. It s a more complex design that requires more building materials.

Also different architectural styles will use the same type of roof. The use of timber as trussed rafters for roof of buildings is a very popular alternative all over the world. A truss roof using factory made trusses which are delivered to site complete and just erected. Hip roofs can offer extra living space with an addition of a dormer or a crow s nest.

Traditional or cut roof the traditional option is steeply pitched rarely less than 35. 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. It is still the roof material of choice for housebuilders and self builders irrespective of whether they are building in traditional or contemporary styles or whether they are creating pitched or flat 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.

Design of timber roof trusses pdf cross gabled roof canadian drugcross gabled roof go across saddleback roof is a style that contains 2 or even more saddleback roof ridges that converge at an angle many frequently vertical to each other. The aim of this post is to show the design example of a timber roof truss trussed rafter. Trusses usually occur at regular intervals linked by longitudinal timbers such as purlins. Hip roofs are more expensive to build than a gable roof.

Timber has been the traditional material for building roofs as far back as early saxon times and beyond.