R1005.7

Section R1005.7 is titled 'Factory-built chimney offsets' and covers requirements for factory-built chimneys. A maximum angle of 30° from vertical and a maximum of 4 elbows for a factory-built chimney is established. The purpose of this section is to prevent structural failure, the building from catching fire, and carbon monoxide poisoning.

The model shows a section of a factory-built chimney with 2 elbows and an overlay displaying the maximum angle allowed from vertical.