Fire Protection in Aircraft Hangars: Part 3

When constructing a new aircraft hangar, a builder may be interested to know what options they have when it comes to being categorized into a protection level. In some cases, there may be compromises that can be made that provide substantial cost savings.

Group I and Group II aircraft hangars have very similar requirements when it comes to construction and passive fire protection. These main requirements include, but are not limited to:

  • Construction must be non-combustible
  • Shops and/or office areas have to be separated from the bay(s) by one-hour rated walls
  • Hangar door power must be operable in the event of an emergency
  • 3-hours walls must separate airport bays in order to be considered separate areas for fire requirements
  • Columns in aircraft bays must be sprinklered or have 2-hour protection
  • Trench drains must be large enough to carry away the full design fire flow rate of the fire suppression systems


For more information on fire protection in aircraft hangers, consult an experienced fire protection expert today. Give us a call and we can ensure your building meets all fire codes and provide a safe environment for all occupants.