Q:

What is a girder truss?

A:

Quick Answer

A girder truss is a type of secondary roof support that is most commonly used in the construction of buildings that have a roof that is irregularly shaped. Its main function is to support the weight of the roof.

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Full Answer

A girder truss is typically present in L- or T-shaped buildings due to the fact that the roof changes direction at a sharp angle. Typically, a girder truss is constructed of wood, although stronger materials, such as steel, are often used. A secondary function of a girder truss is to provide structural support to both the roof and the adjoining walls and help buildings withstand hurricanes and other powerful forces.

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Related Questions

  • Q:

    How do you determine roof truss dimensions?

    A:

    To determine the roof truss dimensions, determine the width of the building to be roofed, find out the gable height, and use these measurements to calculate the length of the truss's exterior board. Measure the gable post's width, and use it along with half the building's width to determine the length of the base boards.

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  • Q:

    What is a real-life example of a scalene triangle?

    A:

    A real-life example of a scalene triangle is a roof truss as used in the building roofs on houses and buildings. Other examples include ramps and sails. A scalene triangle is defined as a triangle with no equal sides and no three angles the same.

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  • Q:

    How do you get free roof truss construction plans?

    A:

    Free roof trusses construction plans are available from the websites of Iowa State University, Pro Barn Plans and Woodworkers Workshop. Some plans provide illustrations showing the step-by-step process of building roof trusses, whereas others guide the builder through the process by written instructions. Some of the plans are PDF format.

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  • Q:

    How do you build a roof over a mobile home?

    A:

    A roof can be added over an existing mobile home roof using traditional construction techniques. Materials needed for the project include lumber, insulation, nails, paint, sheathing material and shingles. To begin the process, a plate is nailed along each side of the mobile home, with nails going through the existing metal roof and into the tops of the walls underneath.

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