Load bearing walls support the weight of a floor or roof structure above and are so named because they bear a load.
Truss roof no load bearing walls.
Trusses unless a special girder truss which accepts the loads of attached trusses have no interior load bearing walls.
I have set many a girder atop a load bearing interior load bearing wall.
Most simple construction truss roof home s roof and trusses are supported by the exterior walls perpendicular to the trusses.
If a wall is located on the ground floor go down to the basement to observe the ceiling beams.
We usually build on the exterior walls set the trusses and do all of the chord blocking and truss bracing before buildin.
A wall that is set directly over one of those beams is probably not a load.
That is the beauty of trusses.
I have also set many girders on point load posts in interior walls that someone might be in for a surprise if they think they could take out the wall.
In this case it is not an issue however.
Engineered roof truss systems may be designed to eliminate the need for load bearing walls or change where the bearing walls are located.
Technically the interior partition walls shouldn t even be touching the truss bottom cord during rough in but they usually are.
By contrast a non load bearing wall sometimes called a partition wall is responsible only for holding up itself.
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.
Internal wall brackets are used to connect internal non loadbearing walls to roof trusses at maximum 1800mm centres.
Using this technique you ll get a better idea of the location of the load bearing walls in your house.
Load bearing walls cross roof beams in a perpendicular direction.