Long Span Roof Truss System

Long span roofs can create flexible column free internal spaces and can reduce substructure costs and construction times.

Long span roof truss system.

Pitched ridge depth 84. Tubular steel members varying in gauge and diameter according to requirements. This truss has a 30 span which is only 4 more than 26 but look how much more webbing there is. 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. 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. The load span tables shown below demonstrate only a tiny subset of the possible combinations available with trussteel cfs roof trusses. 05425 cold formed steel trusses roof truss spans every trussteel roof truss is a custom design based upon the unique load span bearing use and code criteria of a particular project.

Red s double 1 1 2 x 2 3 edgewise. Long span roofs are generally defined as those that exceed 12 m in span. Made in the usa. Trusses can be installed in buildings with wood concrete or masonry walls including those located in high seismic zones.

When spaced 10ft they will withstand 110mph winds and 32 lbs ft snow load. The webbing is necessary for the strength of the truss and it is needed in a truss this size. 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. This is the distance between trusses.

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. While spans can extend over 100 feet the most common long span applications range between 60 and 100 feet. To achieve maximum indicated spans trusses may require six or more panels. 1 1 4 and 1 1 2 diam.

While this article focuses on configurations we also have a very cool set of illustrations showcasing the different parts anatomy of roof trusses. A slightly heavier duty truss for mid range spans. Trusses from 8 to 80 clear spans. The standard roof truss spacing is 2.