A steel roof support system that is constructed of a series of structural steel members that are usually not more than 36" in depth. They are found in buildings where long clear spans are required. Additional depths can be utilized if cover plates are used for added strength (either welded or riveted). Generally the trusses or girders are included as the horizontal members in the complete frame components. In certain cases, a low frame cost could be used to account for just the vertical portions. This component would then be used for the horizontal supports.
Vertical supports, roof deck or roof cover.
Enter the following for this component:
Percent of Total Floor Area: 1 – 100, or
Roof Area (Square Feet)
Roof Structure