![]() ![]() They’re usually built in a factory and easily shipped to a construction site. ![]() Trusses are more popular than rafters because they’re more cost-effective, lightweight, and convenient. The most common roof support types are trusses and rafters. This essential component holds the roof up and determines its shape. They can also be stacked together to assist in building several more styles of roof profiles.If you’re looking for roof installation services in Orlando, call the experts at PRS Roofing today at (800) 750-9198.Įvery roof installation starts with a roof support system. In addition, this type of roof truss can extend over a distance while still accommodating the load path that is needed. The Fink truss has been a popular style for many years, because it can accommodate many different rooflines and provide the structural support necessary to uphold the roof. Despite this, Fink trusses are still very popular with many builders.ĭifferent trusses are used for different types of designs. However, Fink roof trusses cannot be adapted to all building styles and must be built on-site. This adds to the overall costs in the end. Anything steeper than this must use trusses that are more substantial to support the building. This type of roof has under a 35-degree pitch. These pieces can be lifted into place, saving time and money. Much of roof carpentry is done through prefabricated woodwork or galvanized steel today. A Fink truss is the perfect solution for many architectural designs and allows for several different types of rooflines, while providing the strength and stability needed. For the best support and a uniform load-carry, it is recommended that at least a 2 x 6 board be used, to ensure that there is no sagging or lifting under adverse weather conditions. The strength of this type of truss allows homeowners to store up to 20 pounds per square foot on the structure. Most types of roofing use a “W” pattern truss. The Strength of Building with Fink Trusses They can be designed to meet nearly any size or shape requirements. The strength to weight ratio permits these structures to have longer spans than conventional framing techniques, allowing for more unique floor plan layouts. The first example of this type of truss was in a railroad bridge over the Monongahela River in West Virginia, which was the longest bridge in North America in its time. History of the Fink Truss DesignĪlbert Fink, a German railroad bridge engineer, originally designed the Fink truss in 1852. ![]() The Fink truss can be applied to roofs, too. Fink trusses were used frequently in bridges for railroads, and were preferred by the Baltimore and Ohio Railroad and Norfolk and Western Railroad. It is even possible to create a triple truss. A single Fink trusscan be up to 33 feet in size, while a double truss can be up to 54 feet. These trusses can cover over 80 feet when the web pattern is duplicated. These trusses provide support for the rafters and give the roof its rigidity.Ī Fink truss is a symmetrical truss that is comprised of a single bar that has arms which angle upwards, with V-shaped webs supporting the interior of the structure. It is composed of several boards or steel bars that connect together to form an intersection at the top angle of the roof. Many different types of trusses can be used when framing a home, depending on the type of roofline.Ī Fink truss is the most commonly used type of residential construction truss. ![]()
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