NFPA 204: Standard for Smoke and Heat Venting

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2012 NFPA 204
Prior Years Prior Editions of NFPA 204

Following the updated guidelines in the 2012 NFPA 204 to correctly design and maintain smoke and heat venting systems.

The 2012 NFPA 204: Standard for Smoke and Heat Venting applies to the design of venting systems for the emergency venting of products of combustion from fires in buildings. Manual and computer-modeled solution methods aid in design calculations. The equations or models provide the designer with the necessary tools to develop vent designs based on selected performance objectives related to a specific building and a specific set of circumstances.

This latest edition introduces new rules for venting systems in sprinklered buildings, including:

  • The venting system design must be based on an engineering analysis
  • Automatic sprinkler systems must comply with NFPA 13: Standard for the Installation of Sprinkler Systems
  • New Annex material

Engineers and architects need this critical Standard to improve fire protection and keep jobs up-to-code. (Softbound, 82 pp., 2012)

NFPA® 204 Standard for Smoke and Heat Venting 2012 Edition

Chapter 1 Administration
1.1 Scope
1.2 Purpose. (Reserved)
1.3 Application
1.4 Retroactivity
1.5 Equivalency
1.6 Units and Formulas
Chapter 2 Referenced Publications
2.1 General
2.2 NFPA Publications
2.3 Other Publications
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 Fundamentals
4.1 Design Objectives
4.2 Design Basis
4.3 Determination of Contents Hazard
4.4 Venting
4.5 Smoke Production
4.6 Vent Flows
Chapter 5 Vents
5.1 Listed Vents
5.2 Vent Design Constraints
5.3 Methods of Operation
5.4 Dimensions and Spacing of Vents
5.5 Mechanical Smoke Exhaust Systems
Chapter 6 Air Inlets
6.1 General
6.2 Construction
6.3 Location
6.4 Installation
6.5 Methods of Operation
6.6 Dimensions and Spacing of Air Inlets
6.7 Air Paths
Chapter 7 Draft Curtains
7.1 General
7.2 Construction
7.3 Location and Depth
7.4 Spacing
Chapter 8 The Design Fire
8.1 General
8.2 Steady (Limited-Growth) Fires
8.3 Growing (Continuous-Growth) Fires
Chapter 9 Sizing Vents
9.1 General
9.2 Hand Calculations
9.3 Models
Chapter 10 Mechanical Smoke Exhaust Systems
10.1 General
10.2 Exhaust Rates
10.3 Fire Exposure
10.4 Number of Exhaust Inlets
10.5 Intake Air
Chapter 11 Venting in Sprinklered Buildings
11.1 Design
11.2 Automatic Sprinkler Systems
11.3 Storage Occupancies Protected by Control Mode Sprinklers
Chapter 12 Inspection and Maintenance
12.1 General
12.2 Requirements
12.3 Inspection, Maintenance, and Acceptance Testing
12.4 Conduct and Observation of Operational Tests
12.5 Air Inlets
12.6 Ice and Snow Removal
Chapter 13 Design Documentation
13.1 Documentation Required
Annex A Explanatory Material
Annex B The Theoretical Basis of LAVENT
Annex C User Guide for the LAVENT Computer Code
Annex D Sample Problem Using Engineering Equations (Hand Calculations) and LAVENT
Annex E Predicting the Rate of Heat Release of Fires
Annex F Design Information
Annex G Informational References