In most applications, the Heavy Duty Rap-Tie is designed to simply transfer the lateral load from the exterior masonry wythe (the veneer) axially to the structural backing, and a single fastener will usually prove adequate. However, by using two fasteners to attach the Heavy Duty L-Plate to the structural backing, shear forces as well as axial forces can be resisted by the Heavy Duty Rap-Tie to provide composite action between the masonry veneer and the structural backing. The entire wall thickness, including both veneer and structural backing, becomes effective in resisting lateral loads, offering reduced lateral deflections and increased lateral resistance (see FERO Stud Shear™ Connector or Block Shear™ Connector literature). A Heavy Duty Rap-Tie can be used for retro-fitting masonry veneer systems where reducing lateral deflection of the steel stud structural backing is a required intervention. (Use the FERO Shear Truss program to evaluate forces in the assembly).

Unit Masonry, Dimension Cut, and Manufactured Stone Veneer Applications
In addition to its use in unit masonry veneer applications (Figures 4 and 5), including both clay brick and concrete masonry, the Heavy Duty Rap-Tie system can be utilized in the application of stone or thin masonry veneer, as illustrated in Figure 6.