Yes, combination fire alarms, which typically include both smoke and carbon monoxide detection, are often required by building codes, but the specifics can vary depending on the jurisdiction and type of building. Many building codes, such as the International Residential Code (IRC) and the National Fire Protection Association (NFPA) standards, recommend or require the installation of combination alarms in residential settings. These codes are frequently adopted and modified by local governments to suit regional needs.
For residential buildings, the IRC and NFPA 72 often require smoke alarms in each bedroom, outside sleeping areas, and on every level of the home, including basements. Carbon monoxide alarms are generally required outside sleeping areas and on each level of the home. Combination alarms can fulfill both requirements, providing a comprehensive safety solution.
In commercial buildings, the requirements can be more complex and are often dictated by the NFPA 101 Life Safety Code, local fire codes, and other relevant standards. These codes may specify the type, placement, and interconnection of alarms based on the building's use, occupancy, and size.
Local amendments to these codes can impose additional requirements, so it's essential to consult the specific building codes and regulations in your area. Compliance with these codes is typically enforced through building inspections and permits, ensuring that safety standards are met during construction and renovation projects.