Truss Roof No Load Bearing Walls

To enable the roof truss to deflect under loads nails to the truss must be installed at the top of the slotted holes and not hammered home to allow a loose fit only.

Truss roof no load bearing walls.

The roof trusses are too long to span the whole house so the load bearing wall runs down the center of the house to support the trusses at the perpendicular intersection in the middle. With your trusses spanning the exterior walls for the full run of the house no interior walls will be load bearing the splices on trusses are engineered to be self supportive according to the plate sizing the fact that they land over an interior wall has nothing to do with that wall being load bearing trusses are engineered to span exterior wall to exterior wall self supporting. To prevent these problems the gap between the truss and the non bearing wall should be enough so that it does not close when the load is applied to the truss. That is the beauty of trusses.

Internal wall brackets are used to connect internal non loadbearing walls to roof trusses at maximum 1800mm centres. Engineered roof truss systems may be designed to eliminate the need for load bearing walls or change where the bearing walls are located. So you could have a minor gap with no load at the end of construction but during snow load you could have a truss failure.