Part 1 — Scope and Application
Additions, alterations, renovations or repairs to an existing building, building system or portion thereof shall conform to the provisions of this code as they relate to new construction without requiring the unaltered portion(s) of the existing building or building system to comply with this code. Additions, alterations, renovations or repairs shall not create an unsafe or hazardous condition or overload existing building systems. An addition shall be deemed to comply with this code if the addition alone complies or if the existing building and addition comply with this code as a single building.
Exception: The following need not comply provided the energy use of the building is not increased:
1. Storm windows installed over existing fenestration.
2. Glass only replacements in an existing sash and frame.
3. Existing ceiling, wall or floor cavities exposed during construction provided that these cavities are filled with insulation.
4. Construction where the existing roof, wall or floor cavity is not exposed.
5. Reroofing for roofs where neither the sheathing nor the insulation is exposed. Roofs without insulation in the cavity and where the sheathing or insulation is exposed during reroofing shall be insulated either above or below the sheathing.
6. Replacement of existing doors that separate conditioned space from the exterior shall not require the installation of a vestibule or revolving door, provided, however, that an existing vestibule that separates a conditioned space from the exterior shall not be removed,
The following buildings, or portions thereof, separated from the remainder of the building by building thermal envelope assemblies complying with this code shall be exempt from the building thermal envelope provisions of this code:
1. Those with a peak design rate of energy usage less than 3.4 Btu/h•ft2 (10.7 W/m2) or 1.0 watt/ft2 (10.7 W/m2) of floor area for space conditioning purposes.
2. Those that do not contain conditioned space.
3. Portions of aircraft hangars where aircraft are housed or stored and/or aircraft servicing, repairs or alterations may occur are exempt from the provisions of Chapter 13 of the International Building Code 2009 with Massachusetts Amendments (780 CMR 13.00).
4. Greenhouses that are free-standing, or attached to a building and separated by a wall having the same thermal value as an exterior wall, and provided with a separate temperature control system.
Part 2 — Administration
Construction documents and other supporting data shall be submitted in one or more sets with each application for a permit. The construction documents shall be prepared by a registered design professional where required by the statutes of the jurisdiction in which the project is to be constructed. Where special conditions exist, the code official is authorized to require necessary construction documents to be prepared by a registered design professional.
Exception: The code official is authorized to waive the requirements for construction documents or other supporting data if the code official determines they are not necessary to confirm compliance with this code.
The construction documents shall contain sufficient information to completely describe the heating, ventilation, and air conditioning (HVAC); lighting; and electric power distribution systems, including operational features and controls. The information required for each system shall include:
- A description of the design intent providing a detailed explanation of the ideas, concepts and criteria that are defined by the owner to be important.
- A description of the basis of design of the systems including all information necessary to prepare a design to accomplish the design intent.
- A description of the sequence of operation of the systems and their interaction with other systems, including fire prevention and fire protection systems.
- A description of the systems including the capacities of the equipment or systems.
- A description of the testing requirements and the criteria for passing to be used for final systems acceptance.
- Submittal of manuals and maintenance manuals as a condition of final acceptance,
and a description of their format and content. The operation manual shall provide all
relevant information needed for day-to-day operation and management of each system.
The maintenance manual shall describe equipment inventory and support the
The format and content of operation and maintenance manuals, that shall be submitted as a condition of final acceptance. The operation manual shall provide all relevant information needed for day-to-day operation and management of each system. The maintenance manual shall describe equipment inventory and support the maintenance program.
- Submittal of record drawings and control documents as a condition of final acceptance, per Chapter 1 of the International Building Code 2009 with Massachusetts Amendments (780 CMR 1.00).
When the code official issues a permit where construction documents are required, the construction documents shall be endorsed in writing and stamped “Reviewed for Code Compliance.” Such approved construction documents shall not be changed, modified or altered without authorization from the code official. Work shall be done in accordance with the approved construction documents.
One set of construction documents so reviewed shall be retained by the code official. The other set shall be returned to the applicant, kept at the site of work and shall be open to inspection by the code official or a duly authorized representative.
Approval by the building official of the design concepts, testing procedures, and acceptance criteria of section 103.2, items 1. through 7., is not required, but the building official shall reject the construction documents if these sections are incomplete, or if they specify any design elements that violate other requirements.
- Certification from the registered design professional stating that the HVAC, lighting, and electric power distribution systems have been installed in substantial accord with the approved construction documents.
- Confirmation by the building owner or authorized representative that they have received all HVAC, lighting, and electric power distribution system record drawings from the installing contractors and that the responsible party of the system design has reviewed the drawings and confirmed reasonable accuracy of same.
- Confirmation by the building owner or authorized representative that they have
received all test reports, controls documentation, operation manual(s) and maintenance
Exception. In lieu of witnessing a satisfactory functional test, the building official or their designees may accept a final performance acceptance test report from a registered design professional or other legally recognized professional (M.G.L. c. 112, § 81R). Said report shall certify that the systems have been tested and satisfactorily meet their performance requirements.