Roof Truss Interior Walls

Most simple construction truss roof home s roof and trusses are supported by the exterior walls perpendicular to the trusses.

Roof truss interior walls.

But there are five possible exceptions to look out for. Photograph the trusses draw them to scale take the pictures and elevation plan of the trusses to a reseller lumberyard and ask would a new truss like that be a clear span design if yes you can remove the wall use floating slotted clips between the top plate and truss bottom cord to reduce drywall cracking. Also someone mentioned that they nailed where trusses were bearing on interior walls. 1 when the home has an l or t shape there may be an interior bearing wall under the intersection of the perpendicular rows of trusses.

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. There is also details for drywall attachment on the ceiling not securing the rock anywhere from 12 to 18 away from the interior wall ceiling intersection so the truss can lift the drywall floats and the joints don t. It appears the best solution is to build interior walls below the ceiling framing line then use a simpson strongtie stc roof truss clip which keeps the trusses in alignment while allowing for vertical movement of the roof truss. Engineered roof truss systems may be designed to eliminate the need for load bearing walls or change where the bearing walls are located.

Unless this is a designed and designated bearing point no interior walls should have trusses even touching the top plates at all. So far no one has mentioned the simpson floating truss clips which are used to keep your interior walls staight but allow the trusses to float above the interior wall plates. We all need to be using both. 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.