Long Span Roof Truss System

Long span roofs are generally defined as those that exceed 12 m in span.

Long span roof truss system.

While spans can extend over 100 feet the most common long span applications range between 60 and 100 feet. The webbing is necessary for the strength of the truss and it is needed in a truss this size. We can help you design pole barns to meet so many needs we supply a wide range of steel trusses. 1 1 4 and 1 1 2 diam.

A truss of this size and larger usually runs a higher figure of around 4 to 4 75 per foot of truss. They are commonly found in a wide range of building types such as factories warehouses agricultural buildings hangars large shops public halls gymnasiums and arenas. This is the distance between trusses. Long span roofs can create flexible column free internal spaces and can reduce substructure costs and construction times.

The steeper the roof the more expensive the trusses get because the longer the boards get and the more roof area increases. The standard roof truss spacing is 2. Pitched ridge depth 84. Made in the usa.

Tubular steel members varying in gauge and diameter according to requirements. 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. Trusses must be designed for any special loading such as concentrated loads from hanging partitions or air conditioning units and snow loads caused by driftingnearparapetorslide offfromhigherroofs. Trusses can be installed in buildings with wood concrete or masonry walls including those located in high seismic zones.

4 75 to 5 75 lbs ft. Red s double 1 1 2 x 2 3 edgewise. The load span tables shown below demonstrate only a tiny subset of the possible combinations available with trussteel cfs roof trusses. A slightly heavier duty truss for mid range spans.

This truss has a 30 span which is only 4 more than 26 but look how much more webbing there is. While this article focuses on configurations we also have a very cool set of illustrations showcasing the different parts anatomy of roof trusses. Trusses from 8 to 80 clear spans. To achieve maximum indicated spans trusses may require six or more panels.