R1003.9.1

Section R1003.9.1 is titled 'Chimney caps' and covers requirements for masonry chimneys. The requirement for a masonry chimney to have a cap made of certain materials with specific features in accordance with a cross-referenced standard is established. The purpose of this section is to prevent water damage to the chimney and building.

The model shows a partial section of a chimney with a clay flue liner, sloped cement cap with inset drip edge (which prevents water from draining all the way back to the bricks), and a caulked bond break between the cap and the flue.