**904.1 Roof extension. **
All open vent pipes that extend through
a roof shall be terminated at least [NUMBER] inches (mm) above
the roof, except that where a roof is to be used for any purpose
other than weather protection, the vent extensions shall be run
at least 7 feet (2134 mm) above the roof.
Looks like ICC goofed when producing the latest CD version. As you can see no inches/mm listed. However I find the 7’ comment interesting. Is there a second story deck or bedroom window anywhere near the vent stack?