Extended coverage sprinklers are designed to provide what compared to standard sprinklers?

Extended coverage sprinklers are designed to provide what compared to standard sprinklers?

• A. Standard sprinklers
• B. Extended coverage sprinklers
• C. Deluge sprinklers
• D. Wet head sprinklers

Answer: (B)

Extended coverage sprinklers are designed to provide a larger protected area per head than standard sprinklers. The wider spray pattern lets each head cover more ceiling area, so fewer heads are needed to achieve the required fire protection. This helps simplify installation and reduce obstructions in low-rise residential designs while still meeting NFPA 13R requirements. The other sprinkler types aren’t about expanding coverage area: standard sprinklers are the baseline, deluge sprinklers release water through all open paths, and wet head sprinklers are a common head type but not defined by increased coverage.

Extended coverage sprinklers are designed to provide a larger protected area per head than standard sprinklers. The wider spray pattern lets each head cover more ceiling area, so fewer heads are needed to achieve the required fire protection. This helps simplify installation and reduce obstructions in low-rise residential designs while still meeting NFPA 13R requirements. The other sprinkler types aren’t about expanding coverage area: standard sprinklers are the baseline, deluge sprinklers release water through all open paths, and wet head sprinklers are a common head type but not defined by increased coverage.