Roof Truss Top Chord

Truss a pre built structural member capable of supporting a load over a given span.

Roof truss top chord.

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. A truss consists of one or more triangles in its construction. Pitch 12 span ft in overhang ft in rounded to the nearest 1 32. 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.

500 sycamore street p o. Difference in slope between the top and bottom chords is at least 3 12 or the bottom chord pitch is no more than half the top chord pitch. Pitched truss any truss in which the top chord is sloped and the bottom chord is horizontal. Overhang the extension of the top chord of a truss beyond the bottom chord measured horizontally b.

Top chord an inclined or horizontal member that establishes the upper edge of a truss usually carrying compression and bearing stress. Use our top chord truss calculator to estimate your rake length for roof sheathing. 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. Box 177 la crescent mn 55947 507 895 8400.