The most common interface details for structural framing are canopies and balconies that use cantilevered steel or aluminum elements. These elements are typically connected to slab edges or spandrel beams on the interior side of the thermal envelope passing through insulation and air barrier layers. The R value of a wall assembly can be reduced by as much as 60%.
Using structural thermal breaks at these connections will improve the U value of a wall assembly which includes this type of point transmittance. ArmathermTM FRR structural thermal breaks are capable of transferring the loading in moment and shear connections without creating signiﬁcant rotation. In fact, in structural testing, ArmathermTM FRR has been evaluated in moment and shear connections for creep, rotation and any impact on bolt force. While minimizing heat ﬂow, the structural performance of these connections must remain acceptable.