CODES

ADOPTS WITH AMENDMENTS:

International Residential Code 2015 (IRC 2015)

Part I ‒ Administrative

Chapter 1 Scope and Administration

Part II ‒ Definitions

Chapter 2 Definitions

Part III ‒ Building Planning and Construction

Chapter 3 Building Planning

Chapter 4 Foundations

Chapter 5 Floors

Chapter 6 Wall Construction

Chapter 7 Wall Covering

Chapter 8 Roof-Ceiling Construction

Chapter 9 Roof Assemblies

Chapter 10 Chimneys and Fireplaces

Part IV ‒ Energy Conservation

Chapter 11 [RE] Energy Efficiency

Part V ‒ Mechanical

Chapter 12 Mechanical Administration

Chapter 13 General Mechanical System Requirements

Chapter 14 Heating and Cooling Equipment and Appliances

Chapter 15 Exhaust Systems

Chapter 16 Duct Systems

Chapter 17 Combustion Air

Chapter 18 Chimneys and Vents

Chapter 19 Special Appliances, Equipment and Systems

Chapter 20 Boilers and Water Heaters

Chapter 21 Hydronic Piping

Chapter 22 Special Piping and Storage Systems

Chapter 23 Solar Thermal Energy Systems

Part VI ‒ Fuel Gas

Chapter 24 Fuel Gas

Part VII ‒ Plumbing

Chapter 25 Plumbing Administration

Chapter 26 General Plumbing Requirements

Chapter 27 Plumbing Fixtures

Chapter 28 Water Heaters

Chapter 29 Water Supply and Distribution

Chapter 30 Sanitary Drainage

Chapter 31 Vents

Chapter 32 Traps

Chapter 33 Storm Drainage

Part VIII ‒ Electrical

Chapter 34 General Requirements

Chapter 35 Electrical Definitions

Chapter 36 Services

Chapter 37 Branch Circuit and Feeder Requirements

Chapter 38 Wiring Methods

Chapter 39 Power and Lighting Distribution

Chapter 40 Devices and Luminaires

Chapter 41 Appliance Installation

Chapter 42 Swimming Pools

Chapter 43 Class 2 Remote-Control, Signaling and Power-Limited Circuits

Part IX ‒ Referenced Standards

Chapter 44 Referenced Standards

Appendix A Sizing and Capacities of Gas Piping

Appendix B Sizing of Venting Systems Serving Appliances Equipped With Draft Hoods, Category I Appliances, and Appliances Listed for Use With Type B Vents

Appendix C Exit Terminals of Mechanical Draft and Direct-Vent Venting Systems

Appendix D Recommended Procedure for Safety Inspection of an Existing Appliance Installation

Appendix E Manufactured Housing Used as Dwellings

Appendix F Radon Control Methods

Appendix G Piping Standards for Various Applications

Appendix H Patio Covers

Appendix I Private Sewage Disposal

Appendix J Existing Buildings and Structures

Appendix K Sound Transmission

Appendix L Permit Fees

Appendix M HOME DAY CARE—R-3 OCCUPANCY

Appendix N Venting Methods

Appendix O Automatic Vehicular Gates

Appendix P Sizing of Water Piping System

Appendix Q Reserved

Appendix R Light Straw-Clay Construction

Appendix S Strawbale Construction

Appendix T Recommended Procedure for Worst-Case Testing of Atmospheric Venting Systems Under N1102.4 or N1105 Conditions ≤ 5ACH50

Appendix U SOLAR-READY PROVISIONS—DETACHED ONE- AND TWO-FAMILY DWELLINGS, MULTIPLE SINGLE- FAMILY DWELLINGS (TOWNHOUSES)

Appendix V WIND SPEEDS, SEISMIC DESIGN CATEGORIES and GROUND SNOW LOADS

Appendix V WIND SPEEDS, SEISMIC DESIGN CATEGORIES and GROUND SNOW LOADS

AMENDMENT
This section has been amended at the state or city level. Amendments are shown in green text.
Municipality Ultimate
Wind
Speed, Vult
Nominal
Wind
Speed, Vasd
Seismic Design Category1 Ground
Snow
Load,

Pg (psf)
Site (Soil)
Class A-D
Site (Soil)
Class E
Andover 130 101 B B 30
Ansonia 125 97 B B 30
Ashford 130 101 B B 35
Avon 120 93 B B 35
Barkhamsted 120 93 B B 40
Beacon Falls 125 97 B B 30
Berlin 125 97 B B 30
Bethany 125 97 B B 30
Bethel 120 93 B C 30
Bethlehem 120 93 B B 35
Bloomfield 125 97 B B 35
Bolton 125 97 B B 30
Bozrah 135 105 B B 30
Branford 130 101 B B 30
Bridgeport 125 97 B C 30
Bridgewater 120 93 B C 35
Bristol 120 93 B B 35
Brookfield 120 93 B C 35
Brooklyn 130 101 B B 35
Burlington 120 93 B B 35
Canaan 115 89 B B 40
Canterbury 130 101 B B 35
Canton 120 93 B B 35
Chaplin 130 101 B B 35
Cheshire 125 97 B B 30
Chester 130 101 B B 30
Clinton2 135 105 B B 30
Colchester 130 101 B B 30
Colebrook 115 89 B B 40
Columbia 130 101 B B 30
Cornwall 115 89 B B 40
Coventry 130 101 B B 30
Cromwell 125 97 B B 30
Danbury 120 93 B C 30
Darien 120 93 B C 30
Deep River 130 101 B B 30
Derby 125 97 B B 30
Durham 130 101 B B 30
Eastford 130 101 B B 40
East Granby 120 93 B B 35
East Haddam 130 101 B B 30
East Hampton 130 101 B B 30
East Hartford 125 97 B B 30
East Haven 130 101 B B 30
East Lyme2 135 105 B B 30


Municipality Ultimate
Wind
Speed, Vult
Nominal
Wind
Speed, Vasd
Seismic Design Category1 Ground
Snow
Load,

Pg (psf)
Site (Soil)
Class A-D
Site (Soil)
Class E
Easton 120 93 B C 30
East Windsor 125 97 B B 35
Ellington 125 97 B B 35
Enfield 125 97 B B 35
Essex 135 105 B B 30
Fairfield 125 97 B C 30
Farmington 125 97 B B 35
Franklin 130 101 B B 30
Glastonbury 125 97 B B 30
Goshen 115 89 B B 40
Granby 120 93 B B 35
Greenwich 120 93 B C 30
Griswold 135 105 B B 30
Groton2 135 105 B B 30
Guilford 130 101 B B 30
Haddam 130 101 B B 30
Hamden 125 97 B B 30
Hampton 130 101 B B 35
Hartford 125 97 B B 30
Hartland 120 93 B B 40
Harwinton 120 93 B B 35
Hebron 130 101 B B 30
Kent 115 89 B B 40
Killingly 130 101 B B 40
Killingworth 130 101 B B 30
Lebanon 130 101 B B 30
Ledyard 135 105 B B 30
Lisbon 135 105 B B 30
Litchfield 120 93 B B 40
Lyme 135 105 B B 30
Madison2 130 101 B B 30
Manchester 125 97 B B 30
Mansfield 130 101 B B 35
Marlborough 130 101 B B 30
Meriden 125 97 B B 30
Middlebury 120 93 B B 35
Middlefield 125 97 B B 30
Middletown 130 101 B B 30
Milford 125 97 B B 30
Monroe 120 93 B C 30
Montville 135 105 B B 30
Morris 120 93 B B 35
Naugatuck 125 97 B B 30
New Britain 125 97 B B 30
New Canaan 120 93 B C 30
New Fairfield 115 89 B C 35
New Hartford 120 93 B B 40
New Haven 125 97 B B 30


Municipality Ultimate
Wind
Speed, Vult
Nominal
Wind
Speed, Vasd
Seismic Design Category1 Ground
Snow
Load,

Pg (psf)
Site (Soil)
Class A-D
Site (Soil)
Class E
Newington 125 97 B B 30
New London2 135 105 B B 30
New Milford 115 89 B B 35
Newtown 120 93 B C 30
Norfolk 115 89 B B 40
North Branford 130 101 B B 30
North Canaan 115 89 B B 40
North Haven 125 97 B B 30
North Stonington 135 105 B B 30
Norwalk 120 93 B C 30
Norwich 135 105 B B 30
Old Lyme2 135 105 B B 30
Old Saybrook2 135 105 B B 30
Orange 125 97 B B 30
Oxford 125 97 B B 30
Plainfield 135 105 B B 35
Plainville 125 97 B B 35
Plymouth 120 93 B B 35
Pomfret 130 101 B B 40
Portland 130 101 B B 30
Preston 135 105 B B 30
Prospect 125 97 B B 30
Putnam 130 101 B B 40
Redding 120 93 B C 30
Ridgefield 120 93 B C 30
Rocky Hill 125 97 B B 30
Roxbury 120 93 B B 35
Salem 135 105 B B 30
Salisbury 115 89 B B 40
Scotland 130 101 B B 30
Seymour 125 97 B B 30
Sharon 115 89 B B 40
Shelton 125 97 B C 30
Sherman 115 89 B C 35
Simsbury 120 93 B B 35
Somers 125 97 B B 35
Southbury 120 93 B B 35
Southington 125 97 B B 30
South Windsor 125 97 B B 30
Sprague 130 101 B B 30
Stafford 125 97 B B 35
Stamford 120 93 B C 30
Sterling 135 105 B B 35
Stonington2 140 108 B B 30
Stratford 125 97 B C 30
Suffield 120 93 B B 35
Thomaston 120 93 B B 35
Thompson 130 101 B B 40


Municipality Ultimate
Wind
Speed, Vult
Nominal
Wind
Speed, Vasd
Seismic Design Category1 Ground
Snow
Load,

Pg (psf)
Site (Soil)
Class A-D
Site (Soil)
Class E
Tolland 125 97 B B 35
Torrington 120 93 B B 40
Trumbull 125 97 B C 30
Union 125 97 B B 40
Vernon 125 97 B B 30
Voluntown 135 105 B B 30
Wallingford 125 97 B B 30
Warren 115 89 B B 40
Washington 120 93 B B 35
Waterbury 125 97 B B 35
Waterford2 135 105 B B 30
Watertown 120 93 B B 35
Westbrook2 135 105 B B 30
West Hartford 125 97 B B 30
West Haven 125 97 B B 30
Weston 120 93 B C 30
Westport 120 93 B C 30
Wethersfield 125 97 B B 30
Willington 125 97 B B 35
Wilton 120 93 B C 30
Winchester 120 93 B B 40
Windham 130 101 B B 30
Windsor 125 97 B B 35
Windsor Locks 125 97 B B 35
Wolcott 125 97 B B 35
Woodbridge 125 97 B B 30
Woodbury 120 93 B B 35
Woodstock 130 101 B B 40


Footnotes:
  1. If Site Class F is present, the Short Period Spectral Response Acceleration (SDS) shall be determined according to Section 1613.3 of the International Building Code, and the Seismic Design Category shall be determined in accordance with Table 301.2.2.1.1.
  2. Areas south of Interstate 95 in this municipality are classified as a wind-borne debris region. See Section R202 for exceptions.
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