Roof Truss Top Chord

Pitch 12 span ft in overhang ft in rounded to the nearest 1 32.

Roof truss top chord.

Pitched truss any truss in which the top chord is sloped and the bottom chord is horizontal. In historic carpentry the top chords are often called rafters and the bottom chord is often referred to as a tie beam. The top members of a truss are known generically as the top chord bottom members as the bottom chord and the interior members as webs. Closed in which the bottom chord is horizontal and at the foot of the truss and open in which the bottom chords are raised to provide more open space also known as raised bottom chord.

Top chord an inclined or horizontal member that establishes the upper edge of a truss usually carrying compression and bearing stress. 500 sycamore street p o. Flat the most economical flat truss for a roof is provided when the depth of the truss in inches is approximately equal to 7 of the span in inches. Use our top chord truss calculator to estimate your rake length for roof sheathing.

Overhang the extension of the top chord of a truss beyond the bottom chord measured horizontally b. Truss a pre built structural member capable of supporting a load over a given span. A truss consists of one or more triangles in its construction. There are two main types of timber roof trusses.