Can ZMesh be installed under metal roofing?

No. ZMesh is a bronze mesh element and must not be installed under or over metal roofing materials, valley metal, metal flashing, or other electrically conductive surfaces, as contact with metal can cause a short circuit. For metal roof deicing applications, Heatizon recommends Tuff Cable installed in Heatizon’s patented Invizimelt panel system — which are specifically engineered and listed for under-metal-roof deicing.