Understanding the strategies allows fire protection engineers and system designers to help influence the ceiling design that may, in turn, result in a more efficient sprinkler design and layout. 

There is a happy medium between no delegation and full delegation of the fire protection system. 

The requirements of residential sprinkler systems are similar across the three installation standards, with a few variations to provide cost-saving options for homeowners. Where additional protections are necessary or desired, it is up to the engineer to specify.

The use of UL-listed antifreezes helps meet the intent of NFPA freeze protection requirements and the requirement of using an agency-listed antifreeze in both new and existing systems.

Early suppression fast response sprinkler (ESFR) technology was introduced in the late 1980s.

UL examined and tested sprinklers sampled from field installations in accordance with the recommendations and requirements of applicable National Fire Protection Association (NFPA) standards for several decades.Ï