Density/area curves were a major feature of NFPA 13’s fire sprinkler hydraulic calculations—until the 2022 and 2025 editions. Here’s why they were removed and what replaced them.
Fire protection standards evolve every three years, and NFPA 13 2025 has some big changes. Learn about updates on protecting buildings with sloped and high ceilings.
Some residential sprinkler systems require lead-free fire sprinklers and other parts. Learn more about the laws that restrict lead in drinking water and when they apply to fire sprinklers.
The terms fire protection and life safety overlap but are distinct. Learn about this close relationship and the differences.
UL standards help ensure safe and reliable fire protection equipment. Learn about the process and documents, focusing on UL 199 and fire sprinklers.
Avoiding fire sprinkler obstructions is essential—but when do smaller objects like smoke detectors block sprinklers? QRFS explains the rules.
Learn about the roadblocks to widespread residential fire sprinklers and why some areas of homes are exempt from sprinkler coverage in installation standards
Learn about the fire code requirements for residential board and care occupancies, including senior housing and other facilities.
What is a Coast Guard-approved fire extinguisher? How many boat fire extinguishers do you need? QRFS explains the 2016 rule change.
Fire hose reels and racks can be life-saving equipment in the right hands. Learn when code requires fire hose cabinets and when they can be removed.
Learn about the NFPA standards governing fire sprinkler retrofits and installations and how to read these documents, ID system components, and more.
