How does Hott-Wire handle concrete expansion joints?

Like Tuff Cable, Hott-Wire systems use jumpers — steel and aluminum brackets covering the Hott-Wire cable — to protect the cable where it passes through concrete crack control joints and expansion joints. The jumper encases the cable so slab movement cannot apply mechanical stress to the heating element at the joint location. Proper jumper installation at every joint is essential for long-term system reliability in concrete applications.