Chapter 1 Notes – Building Codes Overview

Overview

  • Chapter 1 provides a concise overview of codes that regulate the design and construction of buildings.

  • Some sections are skim-worthy; others require more detailed reading.

History of Codes

  • Code Hammurabi (eighteenth century BCE): builder accountability; failed buildings that killed people could lead to the builder’s death.

  • 1625: First building law on record (New Amsterdam) regulating roof coverings to protect from chimney fires.

  • 1871: Chicago fire leads to municipal building codes in large cities.

  • Mid-1800s: National Board of Fire Underwriters formed to aid insurance claims; 1905: Recommended Building Code spurred original three model codes.

Key Definitions and Roles

  • Codes: collections/regulations/ordinances and other statutory requirements across organizations.

  • I-Codes (ICC): International Codes produced by the International Code Council.

  • C3-Codes (NFPA): Comprehensive Consensus Codes produced by the National Fire Protection Association.

  • AHJ (Authority Having Jurisdiction): entity or person with authority to approve building plans.

Code Formats: I-Codes vs C3-Codes

  • C3-Codes use the Manual of Style: initial chapters; remaining chapters organized by occupancy.

  • I-Codes use the Common Code Format: chapters address various parts of a building and include requirements for each occupancy/building type.

The International Building Code (IBC)

  • The most widely accepted set of building codes; developed by ICC.

  • Some states mandate jurisdiction-specific requirements.

  • Updated on a three-year cycle; jurisdictions adopt codes on their own schedule.

IBC: What is in the IBC

  • Use or Occupancy Classifications

  • Special Use or Occupancy Requirements

  • Types of Construction

  • Fire and Smoke Protection Features

  • Construction Materials

  • Fire Protection Systems

  • Means of Egress

  • Accessibility

  • Interior Environment

  • Building Systems

The IBC Frequent References

  • Plumbing Code

  • Mechanical Code

  • Fire Prevention Code

  • Energy Conservation Code

  • Existing Structures Code

IBC/NFPA/LSC Chapter Breakdown (high level)

  • Cross-references among IBC, NFPA 5000, and LSC; organization by occupancy, hazard, and construction types.

  • Includes performance-based options within the codes.

  • Chapters cover Use and Occupancy, Hazard Classification, and related topics across code families.

Performance Codes

  • Historically prescriptive: specifies exact requirements and methods.

  • Performance codes provide objectives without prescribing exact methods.

  • Example: IBC 104.11 – Alternative materials, design and methods of construction and equipment.

  • NFPA includes both performance and prescriptive codes.

  • Code officials must be consulted on appropriate use of performance codes.

Fire Codes

  • ICC's International Fire Code (IFC) and NFPA’s NFPA 1.

  • Adoption depends on AHJ.

  • Fire codes are used with building codes to address fire-specific requirements.

Why Fire Codes?

  • Fire codes provide additional regulation beyond building codes.

  • They address specific situations or environments not fully covered by building codes.

Life Safety Code

  • Published by NFPA.

  • Addresses removal or evacuation of persons from a building.

Plumbing Code

  • IPC: International Plumbing Code (ICC); updated every three years; widely adopted.

  • UPC: Uniform Plumbing Code (NFPA).

Why Know Plumbing Codes?

  • Determine required number of plumbing fixtures and toilet facilities; essential for architects and designers.

Mechanical Codes

  • IMC: International Mechanical Code (ICC).

  • UMC: Uniform Mechanical Code (NFPA).

  • Primarily used by engineers; helps guide mechanical system design.

Why Mechanical Codes?

  • Provides essential knowledge for projects requiring collaboration with engineers; approach at a manageable pace.

Electrical Codes

  • NEC: National Electrical Code (NFPA) – the standard.

  • This course covers a limited amount of electrical information; not as detailed as a licensed electrician/engineer.

Other Codes Not Discussed This Semester

  • Residential IRC

  • Sustainability

  • Existing Building Energy Codes

  • Not covered this semester

ADA (Americans with Disabilities Act)

  • Four-part federal law enacted in 1990; enforcement began in 1992.

  • Prohibits discrimination based on disability; ensures equal opportunities in employment, goods/services, and government programs.

  • 2010 ADA Standards are the latest; standards are mandatory but general; some states adopt stricter standards.

FHA (Fair Housing Act)

  • Regulates fair housing; prohibits discrimination in buying or renting a home.

  • Requires multi-family dwellings to be ADA accessible.

Standards Organizations

  • A standard is a definition, recommended practice, test method, classification, or required specification.

  • Developed by trade associations, government agencies, and standards-writing organizations.

  • Standards are not law until a jurisdiction adopts them.

  • NFPA and ICC also create standards.

Notable Standards Bodies

  • ANSI: Develops methods for standard development; acts as watchdog; offers third-party certification.

  • ASTM (American Society for Testing and Materials): Oversees standards development and dissemination of technical knowledge.

  • ASHRAE (American Society of Heating, Refrigeration and Air Conditioning Engineers): Develops performance standards for HVAC and refrigeration systems.