Roof Truss Bottom Chord

The roof system is basically a hinge now.

Roof truss bottom chord. In standard heel applications of roof trusses the bottom chord is cut on each end at an angle consistent with the roof pitch of the truss. The horizontal beam of the triangle of a bottom chord is used in this simple triangle truss construction. Those trusses were engineered with a heavy critical dependency on the bottom chords which are in tension. The trusses are 42 long with a 2x10 bottom chord 3 12 pitch.

Roof truss uplift occurs when the bottom chord of the truss is exposed to significantly different moisture or temperature conditions than the rest of the roof truss. And the responses from the experts and my take on each one. I would like to raise it 12 to 16 inches from the bearing point out 12 feet. Removal has left them extremely vulnerable to collapse due to spreading especially under snow loads but also under just the load of the roof itself.

This creates additional surface area for the two members to transfer forces and allows for them to be plated together creating a strong resilient joint. It is utilized in a framed roof comprised of rafters and a ceiling joist.