The 2024 IRC places chimneys and fireplaces in Chapter 10. Its organization includes masonry fireplaces, masonry heaters, masonry chimneys, factory-built fireplaces, factory-built chimneys and exterior air supply.
For sweeps, the distinction between masonry and factory-built systems is critical. Prescriptive masonry provisions and listed factory-built systems are not interchangeable approaches. With listed systems, identification, listing, labeling and manufacturer installation instructions can be central to evaluating the installation.
Do not assume the newest model IRC is the code enforced at a particular property. Determine the adopted edition, local amendments and authority having jurisdiction when a code-compliance conclusion matters.
Use the official source
VerifySweep summarizes concepts for professional education. It does not reproduce or replace copyrighted code or standard text. Consult the official publication for exact requirements.
Educational content only. Codes, standards, listings, manufacturer instructions and local amendments can change which requirement applies to a specific installation.