Vent termination caps required.
Municipal Code of Chicago § 18-28-802.4
in effect18-28-802.4 Vent termination caps required.
Type L vents shall terminate with a listed and labeled cap in accordance with the vent manufacturer's installation instructions.
Source: City of Chicago, Municipal Code of Chicago (American Legal Publishing, codelibrary.amlegal.com)URL: https://codelibrary.amlegal.com/codes/chicago/latest/chicago_il/0-0-0-2687833Fetched: 10/24/2026
