When using manufactured roof trusses on your new home we recommend using Truss/Wall brackets wherever possible to stabilize the trusses. Trusses unlike field cut rafters have a tendency to move during the changing of the seasons. This movement will sometimes cause drywall cracks at the top of a wall where it meets the ceiling.
To help prevent this cracking, use some type of nailed bracket between the top of the wall and the ceiling joists. These brackets are most important on the interior partition walls, but also should be used on the exterior walls.
“Simpson” manufacturing provides a variety to use. We recommend a diamond shaped bracket that nails to the two top plates of the wall and straddles the ceiling joist. “Simpson” products are available at most lumber yards.