NFPA Articles
NFPA 13 Design Density and Area Method: 2026 Guide
The density/area method explained. Light/Ordinary/Extra Hazard tables, adjustment factors, and two worked examples. Common field mistakes.
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Sprinkler K-Factor Selection: A Practical Guide for MEP Engineers
The logic of K-factor selection per NFPA 13-2025, 5 common mistakes, and field-tested practical rules from 16 years of engineering.