Based on sound engineering principles, test data, and field experience, NFPA 409: Standard on Aircraft Hangars provides specifications for construction and fire protection of all types of aircraft hangars.
Only in the updated 2011 Edition:
- Updated references
- Expanded requirements for protection of steel columns per NFPA 13 and NFPA 15
- Revised requirements for draft curtains in Group I and II hangars
- Updated requirements for sprinkler protection in Group III hangars
- Expanded guidance on freeze protection
Editorial changes were also made to improve readability and usability!