A lightning arrester rod or a lightning conductor is a metal rod that is installed on a building to protect it from thunderstorms & lightning strikes. This lightning arrester is made from copper & brass alloy, which is the best conductor of electricity. As such, it has a very high ground coverage of up to 60 meters.
Lightning Protection For Buildings have Lightning rods that intercept this voltage, providing a safe path for lightning current into the ground. They do not decrease the likelihood your home may be struck, but provide a direct path to ground, preventing damage to your home from fire, explosion, and electrical surges that can result from lightning strikes.
An improper grounding connection can cause disaster sometimes as the lightening may find another route like plumbing to reach to the ground, which will produce the same effect as that of a lightning striking any building and can result in fire. Even simple grounding is not advisable for such a system.
It turns out lightning rods still exist and are effective, but many homes do not have them.
Metal roofs do not attract lightning strikes; nor do metal roofs protect a building against lightning. The only way to protect a building is with a properly designed and installed lightning protection system (LPS).
If your home ever gets struck by lightning, you will hear a very loud, powerful boom that might shake your entire house. … Power Surges: When lightning strikes a house, the electricity often surges through a home’s wiring or plumbing system, searching for the quickest possible route to the ground.