LPI Technical Bulletin: Lightning Protection Systems and Bonding
A download copy of this Technical Bulletin is available here.
If more lightning is on the horizon, is it time to expand our field of knowledge about preparedness and lightning protection?
Several climate assessment models have predicted that the U.S. will see a significant increase in the number of lightning strikes in the future. Are we prepared to play the odds with Mother Nature, or is it time to prepare for the risk?
Lightning is fascinating but it’s also destructive and deadly. Scientists tell us that the earth experiences about 25 million lightning strikes per year. But what if that number of strikes were to significantly increase, or even double in the near future? Where will that leave vulnerable infrastructure in terms of expensive power losses, unscheduled down time and lost productivity due to increased surge incidents, or worse yet, full-scale fire losses due to lightning?
According to a study published in the journal ScienceDaily, we could expect to see a “12% increase in lightning” activity associated with forecasts of temperature warming, with the U.S. experiencing as much as a “50% increase in strikes by the turn of the century.”
“We think that by having warmer oceans and warmer temperature in general, we’re going to see higher evaporation and heat transfer, and thus higher frequency of convective storms that in turn results in more lighting-ignited fires,” said Andres Holtz, geography professor at PSU College of Liberal Arts and Sciences and co-lead author of the journal study. “And with a climate mode such as SAM (Southern Annular Mode), stuck in its positive, fire prone phase that seems to amplify climate change, it doesn’t look good,” added Holtz.
While Holtz cautions the findings don’t suggest that there will be increases in lightning fires everywhere, they do suggest increased activity can be expected in many regions–including areas that have historically seen less activity due to overly humid or wet conditions.
These trends are expected worldwide, not just in the Southern Hemisphere,” explained Holtz.
If lightning becomes more frequent, the likeliness of being affected by the weather peril that already affects the most people, most of the time in the most places of the U.S., will also increase. So understanding the threat and preparing people, property and places for the increased risk is critical. Three measures that safety stakeholders can support now to help prepare tomorrow’s communities for lightning, are:
1. Insurance incentives for safety standard-compliant lightning protection systems (LPS).
2. Increased education and promotion of safety standard-compliant LPS.
3. Expanded risk assessment measures to gauge the lightning hazard in the building development process.
Stakeholders looking to keep pace with lightning protection news and industry trends that are helping to build lightning safe communities, can subscribe to LPI’s free “Build & Protect” newsletter at www.lightning.org.
Lightning and Fire Increases at Apartments: Who’s counting the strikes?
Several residents were displaced when lightning ignited an attic fire at this Charlottesville,VA apartment complex on August 30, 2018.
According to the National Fire Protection Association (NFPA), an estimated 95,000 apartment structure fires occurred in the U.S. in 2016. How many of these fires were sparked by lightning is unclear, but a quick Google search of the words “lightning, fires and apartments,” reveals news accounts of countless lightning-sparked property losses throughout the country. And that’s just what’s been reported over the past few months.
Fire and insurance authorities cite roadblocks to obtaining accurate data about these lightning losses due to a variety factors, namely:
- A complex National Fire Incident Reporting System (NFIRS) which is a voluntary data collection depository of U.S. fire departments participating; thus incomplete and subject to field challenges and reporting shortcomings.
- A number of participating departments who fail to provide consistent data (every year).
- FEMA data suggesting that fire reporting to federal or state fire departments or industrial fire brigades is also omitted in NFIRS estimates.
- Lightning fire classification charts published by NFPA citing exclusions of fires at apartments or other multi-family housing.
- Non-existent historical data and tracking of “lightning-sparked” fires and ensuing property losses (insurance statistics) at U.S. apartment complexes.
When it comes to lightning and apartment buildings, it’s unclear as to who is making final decisions regarding risk assessment, tolerable risk and whether lightning protection should be employed as mitigation. In many cases, developers and home builders play leading roles in the design and construction of residential buildings and apartment complexes with building codes and standards (voluntary or otherwise), serving as key drivers in the construction decision-making process.
LPI is hopeful that improvements in the fire incident reporting systems can be enacted to make it easier for firefighters to provide good quality data about all fires–including those sparked by lightning. Unfortunately, funding to make even the most minor changes remains a challenge. In the meantime, while funding is under review, LPI encourages fire safety representatives to include lightning in their NFIRS and NFPA reports wherever relevant, so that communities and decision-makers can have an accurate strike count.
When fire professionals and first-responders take the lead for lightning safety, it helps prevent under-reporting about a potentially-devastating weather hazard and increases awareness about a preventable property risk.
Build & Protect Newsletter, Fall 2018 Edition
Download the October 2018 edition of Build & Protect here.
Lightning…Is your home, business or community in the line of fire?
In support of National Fire Prevention Week, October 7-13
For Immediate Release
MARYVILLE, Mo. — October 8, 2018 — According to the National Fire Protection Association (NFPA) today’s home fires burn faster than ever. In a typical home fire, residents may have as little as one to two minutes to escape safely from the time smoke is visible or an alarm sounds. Understanding the risks and knowing how to react quickly and wisely can mean the difference between life and death in a fire event.
Lightning-sparked fires claim lives and destroy structures in every region of the U.S. Fortunately, property owners can prevent these tragic losses through the installation of professionally-installed lightning protection systems.
The Lightning Protection Institute (LPI) is teaming up with the NFPA — the official sponsor of Fire Prevention Week™ for more than 90 years-to promote this year’s campaign, “Look. Listen. Learn. Be aware. Fire can happen anywhere™,” which works to educate the public about basic but essential ways to quickly and safely escape a home fire. NFPA statistics show that the number of U.S. home fires has been steadily declining over the past few decades. However, the death rate per 1000 home fires that are reported to fire departments was 10 percent higher in 2016 than in 1980.
“These numbers show that while we’ve made significant progress in teaching people how to prevent fires from happening, there’s still much more work to do in terms of educating the public about how to protect themselves in the event of one,” said Lorraine Carli, NFPA’s vice president of Outreach and Advocacy. “This is particularly critical, given the increased speed at which today’s home fires grow and spread.”
Carli notes that although people feel safest in their home, it is also the place people are at greatest risk to fire, with four out of five U.S. fire deaths occurring at home. That over-confidence contributes to a complacency toward home escape planning and practice.
While the NFPA campaign is focusing on home fires, their fire safety messages apply to virtually any structure and any type of structural fire-including those sparked by lightning.
“In working to spread awareness about lightning safety and increase education about lightning protection, we’ve come to realize that most Americans are uninformed about the dangers of lightning; including its very real fire risk,” said Kimberly Loehr, communications director for LPI.
Lightning’s extreme electrical charge can induce destructive surges through a building’s circuitry, puncture pinholes in CSST gas piping, explode brick and roofing, and ignite many types of structural fires. Insurance incident reports indicate that it only takes a single lightning strike to spark a devastating fire. And increasing news reports of lightning fires at countless homes and structures in the U.S. reveal that these tragic situations occur more often than people realize.
For property owners who don’t want to play the odds with lightning, a professionally-installed, safety standard compliant lightning protection system is a viable idea. Lightning protection systems (LPS) that follow the guidelines of NFPA 780, provide a network of low-resistance paths to safely intercept lightning’s destructive electricity and direct it to ground without impact to a structure or its occupants.
“Situational awareness is a skill people need to use wherever they go, but unfortunately people make choices in lightning and fire situations that jeopardize their safety or even cost them their lives,” said Loehr. “By sharing facts and education resources during Fire Prevention Week, we can increase awareness about an underrated fire hazard and hopefully, help build support for lightning safety initiatives, too.”
To educate people about the fire dangers of lightning and the benefits of lightning protection systems for homes and structures, LPI created a new infographic to support this year’s “Look. Listen. Learn.” campaign which highlights three important steps people can take to help quickly and safely escape any fire scenario:
- Look for places fire could start.
- Listen for the sound of the smoke alarm.
- Learn two ways out of every room.
For more information about Fire Prevention Week and home escape planning, visit www.firepreventionweek.org
LPI is leading a Build and Protect effort for lightning safety by providing important lightning protection resources for property owners, insurance providers, architects, engineers and construction planners. When safety stakeholders take a proactive mitigation approach to the lightning hazard, they help prevent lightning-sparked fires at all types of structures. For safety and quality assurance, LPI-IP provides third-party inspection and certification services to ensure lightning protection system compliance with nationally-recognized safety standards.
The Lightning Protection Institute (LPI) is a not-for-profit, nationwide group founded in 1955 to promote lightning safety, awareness and education and is a leading resource for lightning protection and system requirements. Visit the LPI website at www.lightning.org for more information.
For more information contact: Kimberly Loehr, NFPA Building Fire Safety Systems Section Member, LPI Communications Office, kiml@lightning.org
Lightning…Is your home, business or community in the line of FIRE?
In support of National Fire Prevention Week, October 7-13, 2018
Download the LPI Fire Prevention Week infographic:
September is Campus Fire Safety Month! Is your school prepped to prevent a lightning fire?
Safety is a primary concern for every school in the country, and even more so at colleges and universities where large numbers of students reside in campus dormitories and apartments. Severe weather and fires pose special threats to school communities. Since lightning is the weather peril that affects nearly every area of the country, it’s important that school administrators, coaches, emergency managers and security personnel understand the threat and develop a plan to protect students and fortify their school structures.
Here are three questions designed to help schools examine the lightning risk and reduce their exposure:
- Does your school have an evacuation plan in place in case of a lightning fire? If not, make this a priority TODAY! Lightning fires aren’t always visible in their initial stages. A lingering acrid or unusual smell can be evidence of a lightning strike, so it’s important that school safety directors and resident assistants check attic and basement spaces right away. In a fire, seconds count, so be sure to investigate a potential lightning strike immediately and call the fire department for expert guidance. School officials and educators seeking information about fire evacuation will want to review these helpful Campus Fire Safety resources.
- Has your school performed a lightning risk assessment or cost-benefit analysis to evaluate lightning protection system (LPS) installations for new construction, building renovation and existing structures? Not sure how to assess or who to consult? Architects, safety professionals, building owners and property managers have come to rely on the NFPA Lightning Risk Assessment methodology found in the NFPA 780 Standard for the Installation of Lightning Protection Systems, to determine risk of damage due to lightning.
- Is your campus “schooled” in the science of lightning and lightning protection? Don’t wait for a lightning event to test your school’s storm smarts; get enlightened now! The Lightning Protection Institute (LPI) provides a wealth of resources for school officials to view and download. Visit this LPI website link to view videos and public safety announcements, download brochures about lightning protection, read FAQ’s, and browse LPI’s own “Library of Resources.”
Finally, if your campus doesn’t have an outdoor lightning safety policy, there’s no time like the present to make sure staff and students take the lightning threat seriously to stay vigilant at sporting and recreation events. Mitigating severe weather threats for large groups of people can be challenging, and implementing a lightning safety policy is no exception. Having clearly communicated measures and a best-practice policy in place can go a long way in preventing a devastating lightning tragedy. For schools seeking preparedness guidance, Earthnetworks.com has compiled a list of “8 Lightning Policy Best Practices” for implementing smart approaches to lightning safety. 
Are you a student, educator or school official? If so, LPI invites you to support Campus Fire Safety Month and help raise awareness of fire safety at your school. Visit http://www.campus-firewatch.com/ for additional resources and important safety information.
With Lightning Hitting Home for Too Many, Should Homeowners get Enlightened about the Threat?
Lightning protection systems (LPS) can safeguard homes from costly and devastating fire losses. Costs for LPS often run less than many other home amenities, including security systems, generators, specialty lighting and high-end home electronics.
It’s the middle of the night when you and your family are awakened by a loud boom of a thunder-clap. Your windows rattle as you feel your house shake. Your instincts tell you your home has been struck by lightning, but what should you do?
“Anyone who suspects a lightning strike to their home should immediately check their enclosed spaces, like the attic and basement—even if the smoke alarm isn’t sounding and even if you don’t smell smoke,” said Georgia State Fire Marshal, Dwayne Garriss.
According to Garriss, lightning-sparked fires occur more often than people realize. Because lightning is the weather event that affects most people in most parts of the country, it’s important for homeowners to take the threat seriously and have a plan of action.
“A lingering acrid smell or fallen debris from damaged chimneys or shingles can be evidence of a lightning strike,” explained Garriss. “Since lightning fires aren’t always visible in their beginning stages, it’s important to investigate your property and call the fire department immediately.”
Lightning is extreme electricity that can carry up to 300 million volts of energy. When you compare lightning with an average household electrical current of 120 volts and 15 amps, it’s easy to understand how devastating lightning can be to an unprotected home—and it only takes a single strike to ignite a devastating fire.
Because lightning is known for its capricious nature, as much as for its massive power, it’s hard to predict when, what and how it will strike. A few ways lightning’s destructive electricity can enter a building or home, include:
- Through a direct strike that can ignite fires or explode roofing, brick or concrete
- Via roof projections like weather vanes, antennas and satellite dishes
- Through a strike to a chimney or prominent roof dormer
- Via telephone or power lines that can harm internal wiring and electronic equipment
- Via surges or side flash delivered through a nearby tree
- Through home systems like garage doors or cable lines
- Via home amenities like irrigation systems, invisible fences and electric gates
- Through metallic lines, piping or CSST gas piping
Amidst increased reports of lightning-sparked fires destroying property, killing pets, and more tragically, claiming lives (including the recent death of a 13-year veteran firefighter), LPI encourages property owners to investigate the benefits of safety standard-compliant lightning protection systems to mitigate this common weather threat. Lightning protection systems (LPS) that follow the guidelines of the National Fire Protection Association (NFPA) can provide a network of low-resistance paths to safely intercept lightning’s dangerous electricity and direct it to ground without impact to the structure or its occupants.
Finally, as in any fire, including those sparked by lightning, seconds count and reaction is critical! So whether your proactive approach to lightning includes a lightning protection system or not, be sure that your family develops a home escape plan for fire and practices it. When the unexpected occurs—especially in the middle of the night, mere seconds can be the difference between a safe evacuation and a devastating, life-altering situation.
LPI Sponsors 34th International Conference on Lightning Protection in Rzeszow, Poland
LPI is a proud sponsor of the 34th International Conference on Lightning Protection, which will be held in Rzeszow, Poland on September 2-7, 2018. Hosted by the Rzeszow University of Technology, the ICLP 2018 Conference continues a tradition of the preceding ICLP programs by offering an exchange platform of scientific and technical information related to lightning research and lightning protection.
Agenda items for the 2018 Conference will include presentations related to the study of lightning physics, lightning characteristics, lightning protection of structures, electric power systems and electronic systems as well to methods improving protection of people, animals and property against the effects of lightning.
Visit the ICLP2018 website for details and information.
