Attic Trusses Resting On Non Bearing Wall
If there are two plates refer to an engineer.
Attic trusses resting on non bearing wall. This is sometimes done by a homeowner to provide cleared space in the attic for storage but destroys the structural integrity of the truss. If your roof is trusses no walls internally are load bearing only the external walls are. If there is a truss over the wall the wall is probably not load bearing since the truss bears the load. A beam directly under a wall usually means that it s a bearing wall whether the beam is in a crawl space basement or on the main floor.
Chances are this is a non bearing wall. Actually a quick way to determine if the wall is bearing is to cut hole at the top to see if it has one or two top plates. If the support point is at a truss panel point additional load could be put on the element supporting the non bearing wall thus causing distress. Interior walls might be load bearing or may not be.
There may still not be any interior bearing walls but you should check carefully. The concern is that when the truss deflects the non bearing wall could be an effective support point. If the wall in question is parallel to the joists trusses it will likely not be load bearing. 3 only part of the roof framing may be trusses and the rest is rafters as in the photo below.
It is carrying the weight of the ceiling. An example of a load bearing wall call be seen on the right. If there is a column that supports the truss found in the wall the wall still would not be load bearing because the column is taking the load. One top plate and a space between the bottom chord of the truss and the top of the wall non load bearing.
Non loadbearing walls as designated shall not carry any truss loading and shall not be packed to touch the underside of trusses see figure below. The outside walls are supporting the roof so they re bearing walls. Non load bearing walls non loadbearing walls must comply with the requirements specified in the relevant standards as appropriate to the material. Ceiling joists that meet over the wall indicate that it s a bearing wall.