The 2020 national estimates for the leading causes of nonresidential building fire dollar loss show that there was:
- $539,200,000 loss from other unintentional, careless fires.
- $536,300,000 loss from intentional fires.
- $425,900,000 loss from electrical malfunction fires
Overall trends in the leading causes of fire dollar loss for the 10-year period of 2011 to 2020 show the following:
- Other unintentional, careless fires as the leading cause of nonresidential building fire dollar loss in 9 years out of the 10-year period.
- A 27% increase in nonresidential other unintentionally or carelessly set fire dollar loss.
- A 54% increase in nonresidential intentional fire dollar loss.
A $26,465,000 San Francisco, California, building supply warehouse fire with several exposures and a $17,000,000 Philadelphia, Pennsylvania, fire reported in a mercantile or business property contributed to the increase in fire dollar loss in 2020.
- A 20% increase in nonresidential electrical malfunction fire dollar loss.
The overall constant dollar-loss trend takes inflation into account by adjusting each year's dollar loss to its equivalent 2020 value.
Leading causes of nonresidential building fire dollar-loss (2011-2020)
|Other unintentional, careless||319.3||375.0||626.2||422.1||579.8||581.9||495.7||521.5||438.3||539.2|
|Cause under investigation||159.9||157.0||153.9||222.8||185.0||319.0||208.4||117.2||239.1||165.4|