The information below was originally compiled by www.hvac-buzz.com. I have since researched www.up.codes and discovered information that could be slightly different or information that pinpoints specific pipe venting termination lengths. Please do your own research on the building code relevant to each roof project before installing any products.

Building Code Requirements for Minimum Plumbing Vent Height Requirements Above Roof

There are 41 States (see below) that have a minimum plumbing vent height above the roof requirement of less than 9 inches (Roofing contractors are recommended to use Bullet Boots when installing roofs in these States.)

There are 7 states with 12 inch minimum height requirements for plumbing vents: Connecticut, Delaware, Indiana, Minnesota, Montana, Ohio, and Rhode Island (It's recommended for these States to use the Bullet California Boot because of its taller design meeting the 12 inch minimum. If the pipe is higher than 12 inches above the roof, the pipe may be reduced in length to stay within the minimum code requirements while allowing the Bullet California Boot to fit within the manufacturer specifications and installation instructions).

New Hampshire has a minimum requirement of 18 inches.

Vermont has a 6 inch minimum to a maximum of 12 inches for pipes plumbing vents to extend above the roof.

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The details for each State is below in alphabetical order:

Alabama

6” above roof OR 6” above projected snow line OR 7’ above roof (roof used as living space)

Section P3103.1 Residential Code 2015 of Alabama

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Alaska

6” above roof OR 6” above firewall OR 7’ above roof (roof used as assembly or parking area)

Section 906.1 Section 906.3 Uniform Plumbing Code 2018 of Alaska

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Arizona

6” above roof OR 6” above projected snow line OR 7’ above roof (roof used as living space)

Section P3103.1.1 Section P3103.1.2 Residential Code for One- and Two-family Dwellings as amended by the city of Phoenix

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Arkansas

6” above roof OR 7’ above roof (roof used as assembly or parking area)

Section 903.1 2018 Arkansas Plumbing Code

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California

6” above rood OR 6” above firewall OR 7’ above roof (roof used as assembly or parking area)

Section 906.1 Section 906.3 California Plumbing Code 2019

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Colorado

6” above roof OR 6” above projected snow line OR 7’ above roof (roof used as living space)

Section P3103.1.1 Section P3103.1.2 Residential Code 2021 of Colorado

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Connecticut

12” above roof OR 7’ above roof (roof used as living space)

Section P3103.1 2015 IRC portion of 2018 CT State Building Code

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Delaware

12” above roof OR 7’ above roof (roof used as living space)

Section 903.1 2018 State of Delaware Plumbing Code

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Florida

6” above roof OR 6” above projected snow line OR 7’ above roof (roof used as living space)

Section P3103.1.1 Section P3103.1.2 2020 FBC – Residential 7th edition

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Georgia

6” above roof OR 6” above projected snow line OR 7’ above roof (roof used as living space)

Section P3103.1.1 Section P3103.1.2 Georgia State Minimum Standard One and Two Family Dwelling Code

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Hawaii

6” above roof OR 6” above firewall OR 7’ above roof (roof used as assembly or parking area)

Section 906.1 Section 906.3 Uniform Plumbing Code 2018 of Hawaii

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Idaho

6” above roof OR 6” above projected snow line OR 7’ above roof (roof used as living space)

Section P3103.1.1 Section P3103.1.2 International Residential Code 2021

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Illinois

6” above roof OR 6” above projected snow line OR 7’ above roof (roof used as living space)

Section P3103.1.1 Section P3103.1.2 Residential Code 2018 of South Holland

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Indiana

12” above roof OR 7’ above roof (roof used as living space)

Section P3103.1.1 Section P3103.1.2 2020 Indiana Residential Code

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Iowa

6” above roof OR 6” above firewall OR 7’ above roof (roof used as assembly or parking area)

Section 906.1 Section 906.3 Uniform Plumbing Code 2021 of Iowa

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Kansas

6” above roof OR 6” above projected snow line OR 7’ above roof (roof used as living space)

Section P3103.1.1 Section P3103.1.2 Residential Code 2018 of Kansas

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Kentucky

6 inches above roof OR 7' above roof (roof used as living space)

Section 903.1 Plumbing Code 2018 of Kentucky

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Louisiana

6 inches above roof OR 6 inches above projected snow line OR 7' above roof (roof used as living space)

Section P3103.1 Residential Code 2015 of Louisiana

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Maine

2 inches above roof OR 2 inches above firewall OR 7' above roof (roof used as living space) [it appears this statement might conflict with the interpretation of the following details: 906.0 Vent Termination 906.1 Roof Termination Each vent pipe or stack shall extend through its flashing and shall terminate vertically not less than two (2) feet (610 mm) above the roof nor less than one (1) foot (305 mm) from any vertical surface. ]

Section 906.1 Section 906.3 Uniform Plumbing Code 2021 of Maine

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Maryland

6 inches above roof OR 7 inches above roof (roof used as living space)

Section 903.1 Plumbing Code 2018 of Maryland

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Massachusetts

6 inches above roof OR 6 inches above projected snow line OR 7' above roof (roof used as living space)

Section P3103.1.1 Section P3103.1.2 International Residential Code 2021

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Michigan

1 inches above roof OR 7' above roof (roof used as living space)

Section P3103.1 2015 Michigan Residential Code

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Minnesota

12” above roof OR 7’ above roof (roof used as anything but weather protection)

Section 906.1 Section 906.3 2020 Minnesota Plumbing Code

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Mississippi

6” above roof OR 6” above projected snow line OR 7’ above roof (roof used as living space)

Section P3103.1.1 Section P3103.1.2 Residential Code 2018 of Mississippi

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Missouri

6” above roof OR 6” above projected snow line OR 7’ above roof (roof used as living space)

Section P3103.1 Residential Code 2015 of Missouri

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Montana

12” above roof OR 12” above firewall

Section 906.1 Section 906.3 Uniform Plumbing Code 2021 of Montana

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Nebraska

6” above roof OR 6” above projected snow line OR 7’ above roof (roof used as living space)

Section P3103.1.1 Section P3103.1.2 Residential Code of 2018 of Nebraska

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Nevada

6” above roof OR 6” projected snow line OR 7’ above roof (roof used as living area)

Section P3103.1.1 Section P3103.1.2 Residential Code 2018 of Nevada

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New Hampshire

18” above roof OR 6” above projected snow line OR 7’ above roof (roof used as living space)

Section P3103.1.1 Section P3103.1.2 Residential Code for One- and Two-Family Dwellings of the State of New Hampshire

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New Jersey

6” above roof OR 7’ above roof (roof used for anything but weather protection or maintaining equipment)

Section 12.4.1 New Jersey Plumbing Code 2018

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New Mexico

6” above roof OR 6” above firewall OR 7’ above roof (roof used as assembly or parking area)

Section 906.1 Section 906.3 2021 New Mexico Plumbing Code

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New York

6” above roof OR 6” above projected snow line OR 7′ above roof (roof used as living space)

Section P3103.1.1 Section P3103.1.2 2020 Residential Code of New York State

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North Carolina

6” above roof OR 6” above projected snow line OR 7’ above roof (roof used as living space)

Section P3103.1 2018 North Carolina Residential Code

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North Dakota

6” above roof OR 6” above projected snow line OR 7’ above roof (roof used as living space)

Section P3103.1.1 Section P3103.1.2 Residential Code 2018 of North Dakota

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Ohio

12” above roof OR 7’ above roof (roof used as living space)

Section 903.1 Ohio Plumbing Code 2017

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Oklahoma

6” above roof OR 6” above projected snow line OR 7’ above roof (roof used as living space)

Section P3103.1.1 Section P3103.1.2 Residential Code 2018 of Oklahoma

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Oregon

6” above roof OR 6” above projected snow line OR 7’ above roof (roof used as living space)

Section P3103.1.1 Section P3103.1.2 2021 Oregon Residential Specialty Code

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Pennsylvania

6” above roof OR 6” above projected snow line OR 7’ above roof (roof used as living space)

Section P3103.1.1 Section P3103.1.2 Residential Code 2018 of Pennsylvania

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Rhode Island

6” above roof OR 12” above projected snow line OR 7’ above roof (roof used as living space)

Section P3103.1.1 Section P3103.1.2 2021 Rhode Island State One and Two Family Dwellings

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South Carolina

6” above roof OR 6” above projected snow line OR 7’ above roof (roof used as living space)

Section P3103.1.1 Section P3103.1.2 South Carolina Residential Code 2021

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South Dakota

6” above roof OR 6” above projected snow line OR 7’ above roof (roof used as living space)

Section P3103.1.1 Section P3103.1.2 International Residential Code 2021

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Tennessee

6” above roof OR 6” above projected snow line OR 7’ above roof (roof used as living area)

Section P3103.1.1 Section P3103.1.2 Residential Code 2018 of Tennessee

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Texas

6” above roof OR 6” above projected snow line OR 7’ above roof (roof used as living area)

Section P3103.1 Residential Code for one- and two-family dwellings of the Texas Industrialized Housing and Building Program

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Utah

6” above roof OR 6” above projected snow line OR 7’ above roof (roof used as living space)

Section P3103.1 Residential Code 2015 of Utah

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Vermont

6” to a maximum of 12” above roof

Section 903.1 Plumbing Code 2018 of Vermont

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Virginia

6” above roof OR 6” above projected snow line OR 7’ above roof (roof used as living space)

Section P3103.1.1 Section P3103.1.2 2018 Virginia Residential Code

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Washington

6” above roof OR 6” above firewall OR 7’ above roof (roof used as assembly or parking area)

Section 906.1 Section 906.3 2018 Washington State Plumbing Code

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West Virginia

6” above roof OR 6” above projected snow line OR 7’ above roof (roof used as living space)

Section P3103.1.1 Section P3103.1.2 Residential Code 2018 of West Virginia

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Wisconsin

8” above roof OR 7’ above roof (roof used as living area)

Pg. 44 Vent Terminals Wisconsin Drain and Vent System Design by the Wisconsin Department of Commerce

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Wyoming

6” above roof OR 6” above projected snow line OR 7’ above roof (roof used as living space)

Section P3103.1.1 Section P3103.1.2 International Residential Code 2021

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