Is it necessary to support the tops of interior masonry partitions? How can these walls be connected to the structure while still allowing the structure to deflect?
Interior masonry partitions generally must be supported laterally along the top edge, if cross walls do not provide sufficient support. Most building codes require interior partitions to withstand a lateral load of 5 pounds per square foot of wall area; some may require more. Several manufacturers produce anchors that can be used along the tops of these walls. These anchors accommodate vertical movement while supporting the wall laterally. A steel channel or pair of angles also can be used to accomplish this if the top of the wall will not be visible.