If you opt out of a sprinkler system on a new truss built home you have less than 3 minutes to get out of the burning structure.
This video compares a truss built home collapse with a frame built home collapse
The truss build home collapsed in 5 minutes.
The frame build home stood up 20 minutes.
"The Florida Legislature in 1993 passed a law requiring all new buildings three stories and above to be built with fire sprinklers installed. While it took some developers time to adjust their construction plans and specifications to include fire sprinklers and take advantage of these building code allowed tradeoffs, today this progressive law meets with little opposition because the construction cost savings far out weigh the added expense of installing the fire sprinkler. In most cases, the building can be built at a much lower cost per square foot with the fire sprinkler
system and taking advantage of the code allowed tradeoffs, and often the dollar cost
savings per square foot of construction is substantial (Advantage, 1997).
"What has the fire services so mystified is the reality that these fire deaths can
be reduced by an estimated 82% if new technology residential fire sprinklers were
installed along with the smoke detectors (Ruegg, 1984). Using the 10-year average
of U.S. fire deaths from 1985-1994 of 5,770 fire deaths per year, an 82% reduction
means that over 4,700 people a year during this period would have survived the fire