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During the reconstruction of my house, do I need to replace existing smoke detectors in rooms or areas of my house that are not under reconstruction?
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 detectors. 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.

Complete 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.

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  1. Needham Massachusetts Homepage

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  1. Needham Town Hall
    1471 Highland Avenue
    Needham, MA 02492
    Phone: 781-455-7500

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