Bottom chord bc or tie beam.
Roof truss terminology.
The lower portion of a piggyback truss.
Flat truss a truss which has the top chord parallel to the bottom chord over the entire length of the truss.
Roof trusses manufacturers terminology components of a truss apex peak.
Bearing cut or seat cut.
Slopes at roof pitch.
Truss terminology the terms below are typically used to describe the various parts of a metal plate connected wood truss.
The highest point on a truss.
The truss profile span heel height overall height overhang and web configuration depend on the specific design conditions and will vary by application.
Typical framing systems gable.
Truss terminology technical terms used in the truss industry may not be familiar.
Symmetrical a truss whose loading and configuration is exactly the same on both sides of the centerline.
The part of a structural member that extends beyond its support see figure.
A roof s slope is the number of inches it rises for every 12 inches of horizontal run a roof with a 4 in 12 slope rises 4 inches for every 12 inches of horizontal run.
If the roof eave extends beyond the gable end wall by more than 1 then a dropped gable is normally used.
A gable roof has vertical planes usually on the.
The same roof has a 4 12 or 1 3 pitch.
A triangulated combination of members and joints that forms a rigid structural component of a roof designed to support both permanent and imposed loads.
A truss consists of one or more triangles in its construction.
Anchorage is the connection of the roof or floor truss to the building structure.
It is fixed to ends of battens purlins or verge rafters.
The gable roof provides for the most basic of roof systems.
Ansi is the american national standards institute.
Some of the more common are listed below and are illustrated on pages 3 4.
Truss a pre built structural member capable of supporting a load over a given span.
Ansi tpi 1 1 1995 is a publication of the truss plate institute tpi and ansi defining a standard for design and manufacture for metal plate connected wood trusses mpcwt.
The truss proļ¬ le span heel height overall height overhang.
Pitched truss any truss in which the top chord is sloped and the bottom chord is horizontal.
A truss may also be so manufactured because of transportation considerations e g.
Square the amount of roofing material needed to cover 100 square feet of roof.
Trim along the edge of roofing at a gable end.
