Attic Truss Terminology

Roof trusses manufacturers terminology components of a truss.

Attic truss terminology.

The highest point on a truss where the sloping top chords meet. A truss consists of one or more triangles in its construction. An l shaped metal strip positioned along a roof s edges to allow water to run off the roof without running down the eaves or siding. A truss consists of one or more triangles in its construction.

Pitched truss any truss in which the top chord is sloped and the bottom chord is horizontal. Bearing cut or seat cut. Square the amount of roofing material needed to cover 100 square feet of roof. This drag strut drag truss or collector is a single element or component designed to transmit lateral loads to lateral load resisting systems that are parallel to the applied force.

Truss a pre built structural member capable of supporting a load over a given span. Typical framing systems gable. Structural support of trusses usually walls normally with a timber wall plate. Flat truss a truss which has the top chord parallel to the bottom chord over the entire length of the truss.

Truss terminology the terms below are typically used to describe the various parts of a metal plate connected wood truss. The gable roof provides for the most basic of roof systems. A truss or trusses designed to assist in resisting the effects of seismic events by acting as a drag strut. Tension forces being exerted on a truss member that creates pulling apart or elongating effect.

If the roof eave extends beyond the gable end wall by more than 1 then a dropped gable is normally used. A horizontal cut to the bottom of a sloping bottom chord usually the width of the bearing i e. Each hip truss has the same span and overhang as the adjacent standard trusses but decreases in height with the top and bottom chords of its center portion parallel to each other and horizontal. Eaves on a sloped roof the horizontal underside that projects out from the house wall.

Flat truss a truss which has the top chord parallel to the bottom chord over the entire length of the truss. The truss profile span heel height overall height overhang and web configuration depend on the specific design conditions and will vary by application. Symmetrical a truss whose loading and configuration is exactly the same on both sides of the centerline. The wall plate width see figure 7.

Truss a pre built structural member capable of supporting a load over a given span. A gable roof has vertical planes usually on the. Portion of the end wall above the eave line of a double sloped roof.