One of the most common defects I have come across lately in home inspections is ungrounded or improperly grounded Corrugated Stainless Steel Tubing Gas line (CSST). The biggest reason for this is that CCST had become very popular starting in the early 2000’s and did not become known to be a hazard if not grounded/bonded until about 2013.
Properly bonding and grounding of a CSST system may reduce the risk of damage and fire from a lightning strike. Lightning is a highly destructive force.