Engineered Roof Trusses Load Bearing Walls

They do this by means of top chords which are sloping members that extend from the peak of the roof to the top of the exterior walls at the eaves.

Engineered roof trusses load bearing walls.

Most simple construction truss roof home s roof and trusses are supported by the exterior walls perpendicular to the trusses. Support for a roof built with engineered trusses comes from the sides of the house and is distributed that way so you wouldn t need a load bearing wall in the house. The span in short is the length of the bottom of the truss. We usually build on the exterior walls set the trusses and do all of the chord blocking and truss bracing before buildin.

Factors that affect truss pricing and cost. Roof trusses support a roof s weight by transferring the weight load downward and outward to the building s bearing walls. For example a gable end truss may be designed with support members that transmit the roof weight load outward to the side walls allowing the end wall directly below it to have breaks or openings in it that would otherwise be impossible. This is the distance of the bottom chord of the truss from outside overhang of bearing wall to outside of the other bearing wall.

By contrast a non load bearing wall sometimes called a partition wall is responsible only for holding up itself. Load bearing walls support the weight of a floor or roof structure above and are so named because they bear a load. Some spans have a lower rate per foot than others. A gable wall will be load bearing if there is no truss is used at this point this is due to traditional framing methods being used for end of the gables but saying that you could use a truss at that point and have the wall open but this would need to be engineered to suit the situation.