Delete and replace section AJ102.3 Smoke, Carbon Monoxide and Heat Protection as follows:
Smoke, carbon monoxide and heat protection shall be provided when required by this section and designed, located and installed in accordance with the provisions for new construction. See sections R314, R314.5, and R315.
Add the following new sections - AJ102.3.1 Adding or Creating One or More Sleeping Rooms, AJ102.3.2 Complete Reconstruction, AJ102.3.3 Adding an Attached Garage, and AJ102.3.4 Energy Storage Systems as follows:
AJ102.3.1Adding or Creating One or More Sleeping Rooms.Single-family Dwelling. When one or more sleeping rooms are added or created to an existing dwelling, the entire dwelling shall be provided with smoke, heat and carbon monoxide protection.
2.Two-family Dwelling. When one or more sleeping rooms are added or created to one dwelling unit that unit shall be provided with smoke, heat and carbon monoxide protection. When sleeping rooms are added or created to both units the entire building shall be provided with smoke, heat and carbon monoxide protection.3.Townhouses Dwelling Unit. When one or more sleeping rooms are added or created to an existing dwelling unit, the entire unit shall be provided with smoke, heat, and carbon monoxide protection.AJ102.3.2Complete Reconstruction. If a dwelling or townhouse building undergoes reconstruction such that more than 50% of walls and ceilings are open to framing, then the entire existing building shall be provided with smoke, heat and carbon monoxide protection.AJ102.3.3Adding an Attached Garage. If a garage is created under or attached to an existing dwelling unit, heat detection shall be provided in the garage in accordance with R314.8 and carbon monoxide protection shall be provided throughout the building in accordance with R315. Add New Section to AJ102.3:
AJ102.3.4 Energy Storage Systems. When an energy storage system (ESS) is installed in a building, the building shall be provided with smoke, carbon monoxide, and heat protection in accordance with R314 and R315.
AJ102.3.4Energy Storage Systems. When an energy storage system is installed, smoke, heat, and carbon monoxide detection shall be provided in accordance with the following: Installation of an energy storage system within an attached garage or dwelling unit shall require a hard-wired powered smoke or heat detection device within the immediate vicinity of the energy storage system in accordance with R314.
Add new section AJ102.7.1 Documentation of Compliance Alternatives as follows:
AJ102.7.1Documentation of Compliance Alternatives. The building official shall ensure that the BBRS is provided with information regarding any and all compliance alternatives accepted by the building official within two weeks of acceptance.780 CMR, ch. 51, app AF, app AJ, AJ102.3
Amended by Mass Register Issue 1532, eff. 10/11/2024.