When thinking about PV installations, which may be producing energy for decades, long-term durability should be your guide, down to the wire ties you choose. Stainless steel wire ties and module clips are highly recommended to secure module wires to the module frames and racks. All wires must be secured to prevent them from touching the roof surface. Wiring that comes in contact with the roof can be damaged due to mechanical abrasion by wind or ice, potentially creating fire and shock hazards. In this installation, the installers added a few layers of electrician’s splicing tape under the stainless wire ties to prevent abrasion against the ties’ abrupt edges.