Lightning activity is a hazard in almost all areas of the U.S. and most intense in the central and southeastern regions of the country. Figure 1 illustrates U.S. lightning flash density. According to The Lightning Protection Institute (LPI), direct lighting strikes to buildings cause fire damage in excess of $200 million per year, and insurance companies pay claims in the billions of dollars associated with lighting.
Figure 1: U.S. Lightning Flash Density
To minimize the risk to buildings, their occupants, and contents, LPS are used to avoid damage caused by lightning (See Figure 2).
Figure 2: Damage caused by lightning strike on a building without LPS
Photo courtesy of Michael Chusid RA FCSI CCS