R301.1 Application
R301.1.1 Alternative provisions
R301.1.2 Construction systems
R301.1.3 Engineered design
R301.2 Climatic and geographic design criteria
R301.2.1 Wind design criteria
R301.2.1.1 Wind limitations and wind design required
R301.2.1.1.1 Sunrooms
R301.2.1.2 Protection of openings
R301.2.1.2.1 Application of ASTM E1996
R301.2.1.3 Wind speed conversion
R301.2.1.4 Exposure category
R301.2.1.5 Topographic wind effects
R301.2.1.5.1 Simplified topographic wind speed-up method
R301.2.2 Seismic provisions
R301.2.2.1 Determination of seismic design category
R301.2.2.1.1 Alternate determination of seismic design category
R301.2.2.1.2 Alternative determination of seismic design category E
R301.2.2.2 Weights of materials
R301.2.2.3 Stone and masonry veneer
R301.2.2.4 Masonry construction
R301.2.2.5 Concrete construction
R301.2.2.6 Irregular buildings
R301.2.2.7 Height limitations
R301.2.2.8 Cold-formed steel framing in seismic design categories D0, D1 and D2
R301.2.2.9 Masonry chimneys
R301.2.2.10 Anchorage of water heaters
R301.2.3 Snow loads
R301.2.4 Floodplain construction
R301.2.4.1 Alternative provisions
R301.3 Story height
R301.4 Dead load
R301.5 Live load
R301.6 Roof load
R301.7 Deflection
R301.8 Nominal sizes
R302.1 Exterior Walls
R302.2 Townhouses ☆
R302.2.1 Double Walls
R302.2.2 Common Walls
R302.2.3 Continuity
R302.2.4 Parapets for townhouses
R302.2.5 Parapet construction
R302.2.6 Structrual independence
R302.3 Two-family dwellings
R302.3.1 Supporting construction
R302.4 Dwelling unit rated penetrations
R302.4.1 Through penetrations
R302.4.1.1 Fire-resistance-rated assembly
R302.4.1.2 Penetration firestop system
R302.4.2 Membrane penetrations
R302.5 Dwelling-garage opening and penetration protection
R302.5.1 Opening protection
R302.5.2 Duct penetrations
R302.5.3 Other penetrations
R302.6 Dwelling-garage fire separation
R302.7 Under-stair protection
R302.8 Foam plastics
R302.9 Flame spread index and smoke-developed index for wall and ceiling finishes
R302.9.1 Flame spread index
R302.9.2 Smoke-developed index
R302.9.3 Testing
R302.9.4 Alternative test method
R302.10 Flame spread index and smoke-developed index for insulation
R302.10.1 Insulation
R302.10.2 Loose-fill insulation
R302.10.3 Cellulosic fiber loose-fill insulation
R302.10.4 Exposed attic insulation
R302.10.5 Testing
R302.11 Fireblocking ☆
R302.11.1 Fireblocking materials
R302.11.1.1 Batts or blankets of mineral or glass fiber
R302.11.1.2 Unfaced fiberglass
R302.11.1.3 Loose-fill insulation material
R302.11.2 Fireblocking integrity
R302.12 Draftstopping | R302.12.1 Materials
R302.13 Fire protection of floors
R302.14 Combustible insulation clearance
R303.1 Habitable Rooms
R303.2 Adjoining Rooms
R303.3 Bathrooms
R303.4 Mechanical ventilation
R303.5 Opening location
R303.5.1 Intake openings
R303.5.2 Exhaust openings
R303.6 Outside opening protection
R303.7 Interior stairway illumination
R303.8 Exterior stairway illumination
R303.9 Required glazed opening
R303.9.1 Sunroom additions
R303.10 Required heating
R308 Overview ☆
R308.1 Identification
R308.1.1 Identification of multiple assemblies
R308.2 Louvered windows or jalousies
R308.2.1 Wired glass prohibited
R308.3 Human impact loads
R308.3.1 Impact test
R308.4 Hazardous locations
R308.4.1 Glazing in doors
R308.4.2 Glazing adjacent to doors
R308.4.3 Glazing in windows
R308.4.4 Glazing in guards and railings
R308.4.5 Glazing and wet surfaces
R308.4.6 Glazing adjacent to stairs and ramps
R308.4.7 Glazing adjacent to the bottom stair landing
R308.5 Site-built windows
R308.6 Skylights and sloped glazing
R308.6.1 Definitions
R308.6.2 Materials
R308.6.3 Screens, general
R308.6.4 Screens with multiple glazing
R308.6.5 Screens not required
R308.6.6 Glass in greenhouses
R308.6.7 Screen characteristics
R308.6.8 Curbs for skylights
R308.6.9 Testing and labeling
R308.6.9.1 Comparative analysis for glass-glazed unit skylights
R309.1 Floor surface
R309.2 Carports
R309.3 Flood hazard areas
R309.4 Automatic garage door openers
R309.5 Fire sprinklers
R310.1 Emergency escape and rescue opening required
R310.1.1 Operation constraints and opening control devices
R310.2 Emergency escape and rescue openings
R310.2.1 Minimum opening area
R310.2.2 Window sill height
R310.2.3 Window wells
R310.2.3.1 Ladder and steps
R310.2.3.2 Drainage
R310.2.4 Emergency escape and rescue openings under decks and porches
R310.2.5 Replacement windows
R310.3 Emergency escape and rescue doors
R310.3.1 Minimum door opening size
R310.3.2 Area wells
R310.3.2.1 Ladder and steps
R310.3.2.2 Drainage
R310.4 Bars, grilles, covers and screens
R310.5 Dwelling additions
R310.6 Alterations or repairs of existing basements
R311.2 Egress door
R311.3 Floors and landings at exterior doors
R311.3.1 Floor elevations at the required egress doors
R311.3.2 Floor elevations at other exterior doors
R311.3.3 Storm and screen doors
R311.4 Vertical egress
R311.5 Landing, deck, balcony and stair construction and attachment
R311.6 Hallways
R311.7 Stairways
R311.7.1 Width
R311.7.2 Headroom
R311.7.3 Vertical rise
R311.7.4 Walkline
R311.7.5 Stair treads and risers
R311.7.5.1 Risers
R311.7.5.2 Treads
R311.7.5.2.1 Winder treads
R311.7.5.3 Nosings
R311.7.5.4 Exterior plastic composite treads
R311.7.6 Landings for stairways
R311.7.7 Stairway walking surface
R311.7.8 Handrails
R311.7.8.1 Height
R311.7.8.2 Handrail projection
R311.7.8.3 Handrail clearance
R311.7.8.4 Continuity
R311.7.8.5 Grip size
R311.7.10.1 Spiral stairways
R311.7.11 Alternating tread devices
R311.7.11.1 Treads of alternating tread devices
R311.7.11.2 Handrails of alternating tread devices
R311.7.12 Ship's ladders
R311.7.12.1 Treads of ship's ladders
R311.7.12.2 Handrails of ship's ladders
R311.8 Ramps
R312.1 Guards
R312.1.1 Where required
R312.1.2 Height
R312.1.3 Opening limitations
R312.2 Window fall protection
R312.2.1 Window sills
R312.2.2 Window opening control devices
R313 Overview
R313.1 Townhouse automatic fire sprinkler systems
R313.1.1 Design and installation
R313.2 One- and two-family dwellings automatic fire sprinkler systems
R313.2.1 Design and installation
R314.1 General
R314.1.1 Listings
R314.2 Where required
R314.2.1 New construction
R314.2.2 Alterations, repairs and additions
R314.3 Location
R314.3.1 Installation near cooking appliances
R314.4 Interconnection
R314.5 Combination alarms
R314.6 Power source
R314.7 Fire alarm systems
R314.7.1 General
R314.7.2 Location
R314.7.3 Permanent fixture
R314.7.4 Combination detectors

