How effective are fire sprinklers for a home's exterior? NFPA has some answers

Blog Post created by freddurso Employee on Aug 23, 2018

We constantly discuss the necessity of indoor, fire sprinklers via this blog. Every so often, we get questions on the necessity and effectiveness of exterior sprinklers, primarily for homes in areas prone to wildfires. If curious about these systems, NFPA and the Insurance Institute for Business & Home Safety (IBHS) have developed a new fact sheet on its functionality and recommendations if considering this technology. 


According to the fact sheet, post-wildfire assessments of homes show exterior fire sprinklers can be effective in helping  a home survive a wildfire. However, there are potential issues with their use, including: 


  • questionable effectiveness, particularly when a neighboring home is burning, since this would result in an extended radiant heat and/or contact exposure to the home
  • the potential for using extreme amounts of water. The water supply should be adequate to deliver water, when needed, for the time embers could threaten a home. This period could be up to eight hours. 


Download the new fact sheet to learn about key recommendations from NFPA and IBHS on the use of exterior sprinklers.