A new NFPA report says that automatic sprinklers are highly effective and reliable elements of total system designs for fire protection in buildings.
The report, "U.S. Experience with Sprinklers", by John R. Hall, Jr., cites an American Housing Survey that states that in 2009, 4.6% of occupied homes (including multi-unit) had sprinklers, up from 3.9% in 2007, and 18.5% of occupied home built in the previous four years had sprinklers.
The report includes statistics on how often sprinklers are reported in fires, by property use, and their estimated impact in reducing the average loss of life and property per fire. It also includes statistics on performance, usage and reliability of sprinklers, as well as leading reasons when system fail to operate or operate but are ineffective.