Attic Truss Terminology

Typical framing systems gable.

Attic truss terminology. 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. The gable roof provides for the most basic of roof systems. A gable roof has vertical planes usually on the. 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. Roof trusses manufacturers terminology components of a truss. 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. A truss consists of one or more triangles in its construction.

Tension forces being exerted on a truss member that creates pulling apart or elongating effect. Truss a pre built structural member capable of supporting a load over a given span. If the roof eave extends beyond the gable end wall by more than 1 then a dropped gable is normally used. Flat truss a truss which has the top chord parallel to the bottom chord over the entire length of the truss.

Structural support of trusses usually walls normally with a timber wall plate. Dead load weight of roof trusses top chord bottom chord webs weight per lineal foot plf 2x4 2x4 2x4 4 3 2x4 2x8 2x4 5 6 2x6 2x4 2x4 4 8 2x6 2x6 2x4 5 5 2x6 2x6 2x6 6 2 2x6 2x8 2x4 5 9 2x6 2x10 2x4 6 6 2x6 2x10 2x6 7 2 2x8 2x8 2x4 6 6 2x8 2x8 2x6 7 2 2x8 2x10 2x8 8 4 dead load weight of floor trusses depth in inches top chord bottom chord. The wall plate width see figure 7. 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.

Eaves on a sloped roof the horizontal underside that projects out from the house wall. Truss terminology the terms below are typically used to describe the various parts of a metal plate connected wood truss. Flat truss a truss which has the top chord parallel to the bottom chord over the entire length of the truss. The highest point on a truss where the sloping top chords meet.

Truss a pre built structural member capable of supporting a load over a given span. Trusses used in a hip set roof system. Square the amount of roofing material needed to cover 100 square feet of roof. A truss or trusses designed to assist in resisting the effects of seismic events by acting as a drag strut.

The truss profile span heel height overall height overhang and web configuration depend on the specific design conditions and will vary by application. A horizontal cut to the bottom of a sloping bottom chord usually the width of the bearing i e. Pitched truss any truss in which the top chord is sloped and the bottom chord is horizontal.