NFPA-22-Compliant-Tank-Roofs-Examples_1200x630

  1. Home
  2. NFPA-22-Compliant-Tank-Roofs-Examples_1200x630
This illustration and photograph show trusses for fire tank roofs sloped less than 30 degrees. Structural engineers calculated these specific designs, which Fire Marshals approved because they have demonstrated NFPA 22 equivalence by supporting a 25 lb/ft² live load. Source: intellectual property of Water Storage Tanks, Inc.