Training Program for Masons
Fireplace & Chimney Codes
3/4/17

Masonry fireplace and chimney construction is regulated by the building code. Unlike UL or some other "listing" the building code is not proprietary and the sections which regulate residential construction are "prescriptive" so that they can be understood and followed by a contractor or craftsman without needing to hire and engineer.

Recently the several "model codes" used in the United States (BOCA, NFPA, UBC and SBCCI) have all been merged into one new International Building Code (IBC) and it's residential counterpart, the International Residential Code (IRC). This has been a major several year long effort. The latest code that regulates fireplaces and chimneys is on line at IRC Code.

In addition to the building codes, most states and some local jurisdictions and once in a while the federal government sometimes adopt or enact various energy, indoor air quality and emissions regulations, all of which are generally enforced by the building official. Many of these regulations, insofar as they impact masonry fireplace and chimney construction, are also on line linked from the "code" page.


42" Rumford with folding metal doors

  • IRC Code.
  • ASTM C1283

    Important code Changes:

  • Fireplace Clearance
  • Chimney Clearances
  • Clay Flue Lining
  • Seismic reinforcement
  • Firebox Constuction
  • Hearth extensions
  • Smoke Chambers
  • Chimney Caps

  • << performance - constuction >>

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