State Requirements for Chimney Caps

Some areas, such as California, require a 5/8" mesh for the screened portion of the chimney cap.

There are also regulations in many parts of the country, especially in California, that require a 1/2" spark arrestor. This is primarily true is wooded areas, or areas that are adjacent to wooded areas. The industry standard for California regulation chimney caps are caps with a 5/8” mesh, as these will not allow a ½” spark to escape according to the National Fire Protection Association. Be sure to check the local codes in your area to see what type of special mesh may be required.