Adopts With Amendments
Chapter 11
Building Thermal Envelope and Insulation
International Residential Code 2021
[F] 1101.1 Scope - Energy Efficiency
Section 1101.1 — Scope - Energy Efficiency. This section establishes the scope, applicability, and administrative provisions for enforcement of this code. Refer to the official code text for complete requirements.
[F] 1101.1.1 Energy Efficiency IRC
Section 1101.1.1 — Energy Efficiency IRC. This section addresses energy conservation requirements including thermal performance and building envelope specifications. Refer to the official code text for complete requirements.
[F] 1101.2 Energy Compliance Methods
Section 1101.2 — Energy Compliance Methods. This section addresses energy conservation requirements including thermal performance and building envelope specifications. Refer to the official code text for complete requirements.
[F] 1101.2.1 Energy Efficiency Scope
Section 1101.2.1 — Energy Efficiency Scope. This section establishes the scope, applicability, and administrative provisions for enforcement of this code. Refer to the official code text for complete requirements.
[F] 1102.1 Definitions - Energy Efficiency
Section 1102.1 — Definitions - Energy Efficiency. This section provides definitions relevant to the code. Defined terms have specific meanings that affect how requirements are applied throughout the code. Refer to the official code text for complete requirements.
[F] 1102.1.1 Building Thermal Envelope
Section 1102.1.1 — Building Thermal Envelope. This section addresses energy conservation requirements including thermal performance and building envelope specifications. Refer to the official code text for complete requirements.
[F] 1102.4 Air Leakage
Section 1102.4 — Air Leakage. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
[F] 1103.1 Climate Zone Assignment
Section 1103.1 — Climate Zone Assignment. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
[F] 1103.1.1 Fenestration Requirements
Section 1103.1.1 — Fenestration Requirements. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
[F] 1104.1 Building Thermal Envelope Prescriptive Requirements
Section 1104.1 — Building Thermal Envelope Prescriptive Requirements. This section addresses energy conservation requirements including thermal performance and building envelope specifications. Refer to the official code text for complete requirements.
[F] 1104.2 Insulation and Fenestration Table
Section 1104.2 — Insulation and Fenestration Table. This section addresses energy conservation requirements including thermal performance and building envelope specifications. Refer to the official code text for complete requirements.
[F] 1105.1 Air Leakage - Thermal Envelope
Section 1105.1 — Air Leakage - Thermal Envelope. This section addresses energy conservation requirements including thermal performance and building envelope specifications. Refer to the official code text for complete requirements.
[F] 1105.2 Air Sealing and Insulation
Section 1105.2 — Air Sealing and Insulation. This section addresses energy conservation requirements including thermal performance and building envelope specifications. Refer to the official code text for complete requirements.
[F] 1105.3 Fenestration Air Leakage
Section 1105.3 — Fenestration Air Leakage. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
[F] M1101.1 IRC Mechanical Scope
Section M1101.1 — IRC Mechanical Scope. This section establishes the scope, applicability, and administrative provisions for enforcement of this code. Refer to the official code text for complete requirements.
[F] N1101 General
Section N1101 — General. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
[F] N1101.1 Energy Efficiency - Scope
Section N1101.1 — Energy Efficiency - Scope. This section establishes the scope, applicability, and administrative provisions for enforcement of this code. Refer to the official code text for complete requirements.
[F] N1101.10 Above Code Programs
Section N1101.10 — Above Code Programs. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
[F] N1101.2 Energy Efficiency - Compliance
Section N1101.2 — Energy Efficiency - Compliance. This section addresses energy conservation requirements including thermal performance and building envelope specifications. Refer to the official code text for complete requirements.
[F] N1101.3 Energy Efficiency Compliance Path
Section N1101.3 — Energy Efficiency Compliance Path. This section addresses energy conservation requirements including thermal performance and building envelope specifications. Refer to the official code text for complete requirements.
[F] N1101.4 Energy Efficiency - Definitions
Section N1101.4 — Energy Efficiency - Definitions. This section provides definitions relevant to the code. Defined terms have specific meanings that affect how requirements are applied throughout the code. Refer to the official code text for complete requirements.
[F] N1101.5 Defined Terms
Section N1101.5 — Defined Terms. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
[F] N1101.7 Climate Zones
Section N1101.7 — Climate Zones. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
[F] N1102 Building Thermal Envelope
Section N1102 — Building Thermal Envelope. This section addresses energy conservation requirements including thermal performance and building envelope specifications. Refer to the official code text for complete requirements.
[F] N1102.1 Building Thermal Envelope
Section N1102.1 — Building Thermal Envelope. This section addresses energy conservation requirements including thermal performance and building envelope specifications. Refer to the official code text for complete requirements.
[F] N1102.1.1 Insulation and Fenestration Criteria
Section N1102.1.1 — Insulation and Fenestration Criteria. This section addresses energy conservation requirements including thermal performance and building envelope specifications. Refer to the official code text for complete requirements.
[F] N1102.1.2 Insulation and Fenestration Table
Section N1102.1.2 — Insulation and Fenestration Table. This section addresses energy conservation requirements including thermal performance and building envelope specifications. Refer to the official code text for complete requirements.
[F] N1102.1.3 U-Factor Alternative
Section N1102.1.3 — U-Factor Alternative. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
[F] N1102.2 Specific insulation requirements
Section N1102.2 — Specific insulation requirements. This section addresses energy conservation requirements including thermal performance and building envelope specifications. Refer to the official code text for complete requirements.
[F] N1102.2.1 Ceilings With Attic Spaces
Section N1102.2.1 — Ceilings With Attic Spaces. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
[F] N1102.2.2 Ceilings Without Attic Spaces
Section N1102.2.2 — Ceilings Without Attic Spaces. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
[F] N1102.2.3 Access Hatches and Doors
Section N1102.2.3 — Access Hatches and Doors. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
[F] N1102.2.4 Mass Walls
Section N1102.2.4 — Mass Walls. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
[F] N1102.2.5 Steel-Frame Ceilings, Walls and Floors
Section N1102.2.5 — Steel-Frame Ceilings, Walls and Floors. This section specifies construction material requirements and standards. Refer to the official code for specific material specifications and testing standards. Refer to the official code text for complete requirements.
[F] N1102.2.6 Floors
Section N1102.2.6 — Floors. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
[F] N1102.2.7 Basement Walls
Section N1102.2.7 — Basement Walls. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
[F] N1102.2.8 Slab-On-Grade Floors
Section N1102.2.8 — Slab-On-Grade Floors. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
[F] N1102.2.9 Crawl Space Walls
Section N1102.2.9 — Crawl Space Walls. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
[F] N1102.3 Fenestration
Section N1102.3 — Fenestration. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
[F] N1102.3.1 U-Factor
Section N1102.3.1 — U-Factor. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
[F] N1102.3.2 Glazed Fenestration SHGC
Section N1102.3.2 — Glazed Fenestration SHGC. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
[F] N1102.3.3 Glazed Fenestration Exemption
Section N1102.3.3 — Glazed Fenestration Exemption. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
[F] N1102.3.4 Opaque Door Exemption
Section N1102.3.4 — Opaque Door Exemption. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
[F] N1102.4 Air leakage
Section N1102.4 — Air leakage. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
[F] N1102.4.1 Building Thermal Envelope
Section N1102.4.1 — Building Thermal Envelope. This section addresses energy conservation requirements including thermal performance and building envelope specifications. Refer to the official code text for complete requirements.
[F] N1102.4.1.1 Air Leakage Testing
Section N1102.4.1.1 — Air Leakage Testing. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
[F] N1102.4.1.2 Visual Inspection
Section N1102.4.1.2 — Visual Inspection. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
[F] N1102.4.2 Fireplaces
Section N1102.4.2 — Fireplaces. This section addresses fire protection and life safety requirements. Specific provisions depend on building type, occupancy, and construction classification. Refer to the official code text for complete requirements.
[F] N1102.4.3 Fenestration Air Leakage
Section N1102.4.3 — Fenestration Air Leakage. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
[F] N1102.4.4 Recessed Luminaires
Section N1102.4.4 — Recessed Luminaires. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
[F] N1102.5 Slab Insulation
Section N1102.5 — Slab Insulation. This section addresses energy conservation requirements including thermal performance and building envelope specifications. Refer to the official code text for complete requirements.
[F] N1102.6 Basement Wall Insulation
Section N1102.6 — Basement Wall Insulation. This section addresses energy conservation requirements including thermal performance and building envelope specifications. Refer to the official code text for complete requirements.
[F] N1102.7 Fenestration U-Factor
Section N1102.7 — Fenestration U-Factor. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
[F] N1103 Systems
Section N1103 — Systems. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
[F] N1103.1 HVAC Controls
Section N1103.1 — HVAC Controls. This section addresses mechanical system requirements including ventilation, ductwork, and equipment specifications. Refer to the official code text for complete requirements.
[F] N1103.2 Ducts
Section N1103.2 — Ducts. This section addresses mechanical system requirements including ventilation, ductwork, and equipment specifications. Refer to the official code text for complete requirements.
[F] N1103.2.1 Duct Insulation
Section N1103.2.1 — Duct Insulation. This section addresses mechanical system requirements including ventilation, ductwork, and equipment specifications. Refer to the official code text for complete requirements.
[F] N1103.2.2 Duct Sealing
Section N1103.2.2 — Duct Sealing. This section addresses mechanical system requirements including ventilation, ductwork, and equipment specifications. Refer to the official code text for complete requirements.
[F] N1103.3 Mechanical System Piping Insulation
Section N1103.3 — Mechanical System Piping Insulation. This section addresses mechanical system requirements including ventilation, ductwork, and equipment specifications. Refer to the official code text for complete requirements.
[F] N1103.4 Mechanical Ventilation
Section N1103.4 — Mechanical Ventilation. This section addresses mechanical system requirements including ventilation, ductwork, and equipment specifications. Refer to the official code text for complete requirements.
[F] N1103.5 Mechanical Ventilation
Section N1103.5 — Mechanical Ventilation. This section addresses mechanical system requirements including ventilation, ductwork, and equipment specifications. Refer to the official code text for complete requirements.
[F] N1103.6 Equipment Sizing
Section N1103.6 — Equipment Sizing. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
[F] N1104 Lighting and Power
Section N1104 — Lighting and Power. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
[F] N1104.1 Lighting and Power
Section N1104.1 — Lighting and Power. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
[F] N1105.1 Simulated Performance Alternative
Section N1105.1 — Simulated Performance Alternative. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
[F] N1105.2 Mandatory Requirements
Section N1105.2 — Mandatory Requirements. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
[F] N1105.3 Performance-Based Compliance
Section N1105.3 — Performance-Based Compliance. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
[F] P2501 General Plumbing
Section P2501 — General Plumbing. This section covers plumbing system requirements. Specific sizing, materials, and installation methods are in the official code text. Refer to the official code text for complete requirements.
[F] P2603 Structural and Piping Protection
Section P2603 — Structural and Piping Protection. This section covers structural design and loading requirements. Specific values and calculation methods are defined in the official code text. Refer to the official code text for complete requirements.
[F] R1101.1 Scope - Energy Efficiency
Section R1101.1 — Scope - Energy Efficiency. This section establishes the scope, applicability, and administrative provisions for enforcement of this code. Refer to the official code text for complete requirements.
[F] R1101.1.1 Energy Efficiency Scope
Section R1101.1.1 — Energy Efficiency Scope. This section establishes the scope, applicability, and administrative provisions for enforcement of this code. Refer to the official code text for complete requirements.
[F] R1101.2 Energy Efficiency General Residential
Section R1101.2 — Energy Efficiency General Residential. This section addresses energy conservation requirements including thermal performance and building envelope specifications. Refer to the official code text for complete requirements.
[F] R1102.1 General - Building Thermal Envelope
Section R1102.1 — General - Building Thermal Envelope. This section addresses energy conservation requirements including thermal performance and building envelope specifications. Refer to the official code text for complete requirements.
[F] R1102.1.1 Building Thermal Envelope Insulation
Section R1102.1.1 — Building Thermal Envelope Insulation. This section addresses energy conservation requirements including thermal performance and building envelope specifications. Refer to the official code text for complete requirements.
[F] R1102.1.2 Insulation and Fenestration Criteria
Section R1102.1.2 — Insulation and Fenestration Criteria. This section addresses energy conservation requirements including thermal performance and building envelope specifications. Refer to the official code text for complete requirements.
[F] R1102.2 Residential Insulation and Fenestration
Section R1102.2 — Residential Insulation and Fenestration. This section addresses energy conservation requirements including thermal performance and building envelope specifications. Refer to the official code text for complete requirements.
[F] R1102.2.1 Ceilings with Attic Spaces
Section R1102.2.1 — Ceilings with Attic Spaces. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
[F] R1102.2.2 Ceilings Without Attic Spaces
Section R1102.2.2 — Ceilings Without Attic Spaces. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
[F] R1102.2.3 Eave Baffle
Section R1102.2.3 — Eave Baffle. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
[F] R1102.2.4 Access Hatches and Doors
Section R1102.2.4 — Access Hatches and Doors. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
[F] R1102.2.5 Steel-Frame Ceilings, Walls, and Floors
Section R1102.2.5 — Steel-Frame Ceilings, Walls, and Floors. This section specifies construction material requirements and standards. Refer to the official code for specific material specifications and testing standards. Refer to the official code text for complete requirements.
[F] R1102.3 Fenestration
Section R1102.3 — Fenestration. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
[F] R1102.3.1 U-Factor Alternative
Section R1102.3.1 — U-Factor Alternative. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
[F] R1102.4 Maximum Fenestration U-Factor
Section R1102.4 — Maximum Fenestration U-Factor. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
[F] R1102.4.1 Building Thermal Envelope
Section R1102.4.1 — Building Thermal Envelope. This section addresses energy conservation requirements including thermal performance and building envelope specifications. Refer to the official code text for complete requirements.
[F] R1102.4.1.1 Installation
Section R1102.4.1.1 — Installation. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
[F] R1102.4.1.2 Testing
Section R1102.4.1.2 — Testing. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
[F] R1103.1 HVAC Equipment Efficiency
Section R1103.1 — HVAC Equipment Efficiency. This section addresses mechanical system requirements including ventilation, ductwork, and equipment specifications. Refer to the official code text for complete requirements.
[F] R1103.2 Mechanical Piping Insulation
Section R1103.2 — Mechanical Piping Insulation. This section addresses mechanical system requirements including ventilation, ductwork, and equipment specifications. Refer to the official code text for complete requirements.
[F] R1103.2.1 Ceiling Insulation
Section R1103.2.1 — Ceiling Insulation. This section addresses energy conservation requirements including thermal performance and building envelope specifications. Refer to the official code text for complete requirements.
[F] R1103.2.2 Duct Sealing
Section R1103.2.2 — Duct Sealing. This section addresses mechanical system requirements including ventilation, ductwork, and equipment specifications. Refer to the official code text for complete requirements.
[F] R1103.3 HVAC Equipment Efficiency
Section R1103.3 — HVAC Equipment Efficiency. This section addresses mechanical system requirements including ventilation, ductwork, and equipment specifications. Refer to the official code text for complete requirements.
[F] R1103.3.2 Air sealing and insulation
Section R1103.3.2 — Air sealing and insulation. This section addresses energy conservation requirements including thermal performance and building envelope specifications. Refer to the official code text for complete requirements.
[F] R1103.3.5 Maximum Fenestration U-Factor
Section R1103.3.5 — Maximum Fenestration U-Factor. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
[F] R1103.4 Air Leakage
Section R1103.4 — Air Leakage. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
[F] R1103.4.1 Building Thermal Envelope Sealing
Section R1103.4.1 — Building Thermal Envelope Sealing. This section addresses energy conservation requirements including thermal performance and building envelope specifications. Refer to the official code text for complete requirements.
[F] R1103.5 Maximum Fenestration U-Factor
Section R1103.5 — Maximum Fenestration U-Factor. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
[F] R1104.1 Service Water Heating
Section R1104.1 — Service Water Heating. This section covers plumbing system requirements. Specific sizing, materials, and installation methods are in the official code text. Refer to the official code text for complete requirements.
[F] R1105.1 Service Hot Water Systems
Section R1105.1 — Service Hot Water Systems. This section covers plumbing system requirements. Specific sizing, materials, and installation methods are in the official code text. Refer to the official code text for complete requirements.
[F] R301.1 Application - Energy Efficiency
Section R301.1 — Application - Energy Efficiency. This section addresses energy conservation requirements including thermal performance and building envelope specifications. Refer to the official code text for complete requirements.
[F] R301.2.1 Wind Design Criteria
Section R301.2.1 — Wind Design Criteria. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
[F] R301.2.2 Seismic Design Categories
Section R301.2.2 — Seismic Design Categories. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
[F] R301.3 Dead Loads
Section R301.3 — Dead Loads. This section covers structural design and loading requirements. Specific values and calculation methods are defined in the official code text. Refer to the official code text for complete requirements.
[F] R301.4 Live Loads
Section R301.4 — Live Loads. This section covers structural design and loading requirements. Specific values and calculation methods are defined in the official code text. Refer to the official code text for complete requirements.
[F] R301.5 Roof Loads
Section R301.5 — Roof Loads. This section covers structural design and loading requirements. Specific values and calculation methods are defined in the official code text. Refer to the official code text for complete requirements.
[F] R301.6 Flood Loads
Section R301.6 — Flood Loads. This section covers structural design and loading requirements. Specific values and calculation methods are defined in the official code text. Refer to the official code text for complete requirements.
[F] R302.1.1 Exterior Wall Fire Separation
Section R302.1.1 — Exterior Wall Fire Separation. This section addresses fire protection and life safety requirements. Specific provisions depend on building type, occupancy, and construction classification. Refer to the official code text for complete requirements.
[F] R302.2.1 Townhouse Separation
Section R302.2.1 — Townhouse Separation. This section establishes occupancy classification and use requirements that determine applicable building code provisions. Refer to the official code text for complete requirements.
[F] R302.3.1 Two-Family Dwelling Separation
Section R302.3.1 — Two-Family Dwelling Separation. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
[F] R302.4.1 Garage Opening Protection
Section R302.4.1 — Garage Opening Protection. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
[F] R302.5.1 Opening Protectives for Dwelling-Garage
Section R302.5.1 — Opening Protectives for Dwelling-Garage. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
[F] R303.2 Adjoining Rooms Natural Ventilation
Section R303.2 — Adjoining Rooms Natural Ventilation. This section addresses mechanical system requirements including ventilation, ductwork, and equipment specifications. Refer to the official code text for complete requirements.
[F] R303.3 Bathroom Ventilation
Section R303.3 — Bathroom Ventilation. This section addresses mechanical system requirements including ventilation, ductwork, and equipment specifications. Refer to the official code text for complete requirements.
[F] R303.4 Mechanical Ventilation
Section R303.4 — Mechanical Ventilation. This section addresses mechanical system requirements including ventilation, ductwork, and equipment specifications. Refer to the official code text for complete requirements.
[F] R304.2 Other Habitable Room Minimum Area
Section R304.2 — Other Habitable Room Minimum Area. This section covers allowable building height, area, and number of stories based on construction type and occupancy. Refer to the official code text for complete requirements.
[F] R305.2 Ceiling Height Exceptions
Section R305.2 — Ceiling Height Exceptions. This section covers allowable building height, area, and number of stories based on construction type and occupancy. Refer to the official code text for complete requirements.
[F] R306.2 Sanitation Required Fixtures
Section R306.2 — Sanitation Required Fixtures. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
[F] R307.2 Toilet and Bathing Space Clearance
Section R307.2 — Toilet and Bathing Space Clearance. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
[F] R308.2 Safety Glazing Locations
Section R308.2 — Safety Glazing Locations. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
[F] R310.2 Emergency Escape Window Dimensions
Section R310.2 — Emergency Escape Window Dimensions. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
Code sections are sourced from the International Code Council (ICC) and NFPA. Refer to ICC Digital Codes or NFPA for the authoritative source documents.