Table 2 Residential building components and sub-components assessed in Westport (adapted from Paulik et al. 2022)

Structure

Substructure

All foundation and floor-supporting structures below the underside of the lowest floor finish

0 to 1

Structural Frame

All column and beam framework above lowest floor finish, major roof framing members

0 to 1

Upper Floor

Suspended floors, mezzanine floors, balcony floors and roof slabs

0 to 1

External Finishes

Roof

Complete weatherproof covering for all types of roofs

0 to 1

Walls

All work to exterior walls, including applied or in situ finishes

0 to 1

Windows and doors

All windows and doors in exterior walls, including vertical or near vertical glazing

0 to 1

Internal Finishes

Stairs

Flights and intermediate landings including integral finishes

0 to 1

Walls

All non-structural internal walls

0 to 1

Doors

All interior doors including frames, architraves, finishes and hardware

0 to 1

Floor finishes

Includes all preparatory work, screeds, surface finishes and raised floors

0 to 1

Wall finishes

Includes all preparatory work and finishes to interior walls

0 to 1

Ceiling finishes

Includes all preparatory work and finishes to ceilings

0 to 1

Fixtures and fittings

Joinery fittings, built-in or fixed in position, includes glass, hardware and finishes

0 to 1

Services

Plumbing

Hot and cold-water supply, including hot water cylinder, sanitary fittings, soil, waste and vent pipes

0 to 1

Electrical and heating

All electrical services providing lighting, power, heating and air-conditioning

0 to 1