The term addition shall mean an extension or increase in floor area or height of a residential structure.

The term authority having jurisdiction shall mean the city, town, village, county, agency or other governmental unit responsible for administration and enforcement of the State Uniform Fire Prevention and Building Code with respect to the subject residential structure.

The term 2020 BCNYS shall mean the 2020 Building Code of New York State (said publication being incorporated by reference in Part 1221 of this Title).

The term electric box shall mean the box, if any, mounted on the exterior of the residential structure at the point of connection between the facilities of the serving utility and the premises wiring.

The term existing residential structure means a residential structure that is already in existence at the time an addition or rehabilitation is commenced, without regard to the date of original construction of the residential structure.

The term new residential structure means a residential structure constructed on or after January 1, 2015. For the purposes of this definition, a date of construction of a residential structure shall be deemed to be the date of completion of the original construction of such residential structure, and a residential structure shall be deemed to be a new residential structure if the original construction of such residential structure:

The term pre-engineered wood construction shall mean construction that uses, for any load-supporting purpose(s), girders, beams, or joists made using wood components (or wood-based components) that are bonded together with adhesives (including, but not limited to, prefabricated wood I-joists, structural glued laminated timbers, structural log members, structural composite lumber, and cross-laminated timber).

The term 2020 RCNYS shall mean the 2020 Residential Code of New York State (said publication being incorporated by reference in Part 1220 of this Title).

The term rehabilitation shall mean any repair, renovation, alteration or reconstruction work undertaken in an existing residential building.

The term residential structure shall include one-family dwellings, two-family dwellings, and townhouses (as those terms are defined in the 2020 RCNYS) and structures or portions of structures classified as residential group R in accordance with chapter 3 of the 2020 BCNYS (excluding, however, hotels and motels which are classified as group R-1 or R-2 occupancy in accordance with chapter 3 of the 2020 BCNYS and which are subject to the provisions of Part 1264 of this Title).

The term timber construction shall mean construction that uses, for any load-supporting purpose(s), solid or laminated wood having the minimum dimensions required for structures built using type IV construction (HT) in accordance section 602.4 of the 2020 BCNYS.

The term truss type construction shall mean construction that uses, for any load-supporting purpose(s), a fabricated structure of wood or steel, made up of a series of members connected at their ends to form a series of triangles to span a distance greater than would be possible with any of the individual members on their own. Truss type construction shall not include: