Roof Truss Parts Names

The wall plate width see figure 7.

Roof truss parts names.

It s important to note that the external forces that appear here and their reactions are acting only in the node area but the way the structure is built allows the dispersion of these. 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. Hip this is an external angle formed by the intersection of two sloping roof planes. Bottom chord splice if the truss span is too long for two bottom chords the middle bottom chord is referred to as the splice.

Butt cut a small 90 degree cut at the end of a truss usually 1 4. Heel height the thickness of a truss at the end of the bottom chord. Rafters have a tendency to flatten under gravity thrusting outwards on the walls. 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.

It is a waterproofing layer made of regular felt stacked above the solid. The rafters when combined together help to form the truss. A horizontal cut to the bottom of a sloping bottom chord usually the width of the bearing i e. A composite decking made of solid materials it resembles real wood and particularly strong and stable for bearing heavy load.

A roof truss is basically a structure that includes one or multiple triangular units that include straight slender members with their ends connected via nodes. A roof also beautify a house but the primary purpose of a roof is to protect against any form of weather. Tie down fixings tie down fixings are used to resist uplift and shear forces lateral loads in floor framing wall framing and roof framing. Truss diagram parts of a truss bottom chord the bottom members of a truss.

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. Bearing cut or seat cut. The highest point on a truss where the sloping top chords meet. Truss the truss is a framework comprised of wooden beams that helps to support the roof.

A slight vertical cut usually less than 75mm at the. 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. Structural support of trusses usually walls normally with a timber wall plate. While this article focuses on configurations we also have a very cool set of illustrations showcasing the different parts anatomy of roof trusses.

Roof trusses can be said to be the skeleton of the roof as you known the skeleton produce the shape of animals even humans. Roof truss parts explained. 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.