Page 921 - 2018_IRC

APPENDIX N

1 2 / IN. LAV
1
WC

1 1 / 4 IN. 1 1 / 4 IN. TUB

3 IN.
2 IN.
LAV
1 1 / 2 IN.

3 IN.

TUB WC
1 1 / 2 IN. 3 IN.

A. VERTICAL WET VENTING

1 1 / 2 IN.
WC
TUB
1 1 / 2 IN. 1 1 / 2 IN.

1 1 / 4 IN. LAV
1 1 /
LAV 2 IN.
3 IN.
1 1 / 2 IN. 1 1 /
3 IN. 1 1 / 2 IN. 4 IN.

WC
3 IN.
1 1 / 2 IN.

SHOWER
1/ 1 2 IN.

B. HORIZONTAL WET VENTING

For SI: 1 inch = 25.4 mm.
FIGURE N4
TYPICAL METHODS OF WET VENTING

896 2018 INTERNATIONAL RESIDENTIAL CODE ®
Copyrighted © 2017 by, or licensed to, ICC (ALL RIGHTS RESERVED); licensed to UL, LLC pursuant to License Agreement with ICC. No further reproductions authorized or distribution authorized.
ANY UNAUTHROIZED REPRODUCTION OR DISTRIBUTION IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT; AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER.