NFPA® 221 Standard for High Challenge Fire Walls, Fire Walls, and Fire Barrier Walls 2012 Edition

Chapter 1 Administration

1.1 Scope
1.2 Purpose
1.3 Application
1.4 Retroactivity
1.5 Equivalency
1.6 Units

Chapter 2 Referenced Publications

2.1 General
2.2 NFPA Publications
2.3 Other Publications. (Reserved)
2.4 References for Extracts in Mandatory Sections

Chapter 3 Definitions

3.1 General
3.2 NFPA Official Definitions
3.3 General Definitions

Chapter 4 General Requirements

4.1 Scope
4.2 Design Loads
4.3 Fire Resistance Ratings
4.4 Ducts and Air-Transfer Openings
4.5 Double Wall Assemblies
4.6 Impact Damage
4.7 Joints
4.8 Opening Protectives
4.9 Penetrations

Chapter 5 High Challenge Fire Walls

5.1 Scope
5.2 Structural Stability
5.3 Cantilevered HC Fire Walls
5.4 Tied HC Fire Walls
5.5 Double HC Fire Walls
5.6 HC Fire Walls at Elevation Differences
5.7 Clearance
5.8 Opening Protectives
5.9 Penetrations in HC Fire Walls
5.10 Ducts and Air Transfer Openings
5.11 High-Hazard Materials
5.12 Parapets
5.13 Roof Surface Protection
5.14 Roof Structures
5.15 Roof Penetrations
5.16 Horizontal Continuity

Chapter 6 Fire Walls

6.1 Scope
6.2 Structural Stability
6.3 Cantilevered Fire Walls
6.4 Tied Fire Walls
6.5 Double Fire Walls
6.6 Fire Wall Termination
6.7 Fire Walls with Elevation Differences
6.8 Clearance
6.9 Horizontal Continuity
6.10 Opening Protectives

Chapter 7 Fire Barrier Walls

7.1 Scope
7.2 Continuity
7.3 Opening Protectives

Annex A Explanatory Material
Annex B Informational References
Index