Parts Of A Timber Roof Truss

The upper sections of timber frame bents are often connected and reinforced horizontally by purlins which also support the roof deck.

Parts of a timber roof truss. The highest point on a truss where the sloping top chords meet. Roof truss parts explained. A slight vertical cut usually less than 75mm at the. 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.

A horizontal timber or metal resting at the peak of the roof the rafters and trusses are connected to the ridge board for a cohesive framework. The wall plate width see figure 7. The basic components of a roof truss. Bottom chords bc the lowest longitudinal member of a truss.

The 5 types of trusses for timber frame homes in truss systems engineering and art intersect creating the open concept designs that today s buyers seek. Some myths about roof rafters. Roof trusses can be said to be the skeleton of the roof as you known the skeleton produce the shape of animals even humans. It is a waterproofing layer made of regular felt stacked above the solid.

Horizontal beams supported by posts and used to support the mid span of rafters to cover longer spans these are used in large buildings like the traditional large old barns in the us. Cantilever part of structural member that extends beyond its support. Rafters are a cheaper solution for roof construction. One of a series of diagonal members of the truss that meet at the apex in order to support the roof deck and its loads.

Apex highest point where the sloping top chords meet. Rafters are considered by the public and often by professionals to be the most cost effective roofing solution but this is a misconception. While this article focuses on configurations we also have a very cool set of illustrations showcasing the different parts anatomy of roof trusses. Here s a look at the 5 common types of trusses used to build timber frame homes.

Cantilever strut web that joins the bottom chord above the. Bearing cut or seat cut. Bearing structural support of trusses usually walls normally with a timber wall plate. A composite decking made of solid materials it resembles real wood and particularly strong and stable for bearing heavy load.

A horizontal cut to the bottom of a sloping bottom chord usually the width of the bearing i e. Rafters have a tendency to flatten under gravity thrusting outwards on the walls. Stubbed duo with raised ends in support areas is used at higher loads because this design is able to withstand higher roofing and snow loads than duo timber trusses. A roof is the uppermost parts of any building which give protection against animals and most especially weather be it rain snow sunlight heat wind and so on.

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. These vertical frame members are used in a truss configured with two symmetrical posts instead of or in addition to a single king post.