Building Code Definitions


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H

habitable space

a space used for activities normally associated with domestic living, but excludes any bathroom, laundry, water-closet, pantry, walk-in wardrobe, corridor, hallway, lobby, clothes-drying room, or other space of a specialised nature occupied neither frequently nor for extended periods

handrail

a rail to provide both support to, or assist with the movement of a person

hard-standing

means a hard-surfaced area that is sufficiently stable to carry a fire truck, and includes a road

hazardous

creating an unreasonable risk to people of bodily injury or deterioration of health

hazardous substance

has the meaning ascribed to it by the Fire Service Act 1975

heating degrees

, in relation to a location and a heating month, means the degrees obtained by subtracting from a base temperature of 14°C the mean (calculated using the approved temperature data) of the outdoor temperatures at that location during that month

heating degrees total

, in relation to a location and a year, means whichever is the greater of the following:
(a) the value of 12; and 
(b) the sum of all the heating degrees (calculated using the approved temperature data) for all of the heating months of the year

heating energy

, in relation to a building, means the energy from a network utility operator or a depletable resource (expressed in kilowatt-hours, and calculated using the Building Research Association of New Zealand’s ALF 3, The ‘Annual Loss Factor Method’, A design tool for energy efficient houses (3rd edition, April 2000) or some other method that can be correlated with that manual) needed to maintain the building at all times within a year at a constant internal temperature under the following standard conditions:
(a) a continuous temperature of 20°C throughout the building:
(b) an air change rate of 1 change per hour or the actual air leakage rate, whichever is the greater:
(c) a heat emission contribution arising from internal heat sources for any period in the year of 1 000 kilowatt-hours for the first 50 m2 of floor area, and 10 kilowatt-hours for every additional square metre of floor area:
(d) no allowance for—
(i) carpets; or
(ii) blinds, curtains, or drapes, on windows:
(e) windows to have a shading coefficient of 0.6 (made up of 0.8 for windows and recesses and 0.75 for site shading)

heating month

, in relation to a location, means a month in which a base temperature of 14°C is greater than the mean (calculated using the approved temperature data) of the outdoor temperatures at that location during that month

household unit

means any building or group of buildings, or part of any building or group of buildings, used or intended to be used solely or principally for residential purposes and occupied or intended to be occupied exclusively as the home or residence of not more than one household; but does not include a hostel or boardinghouse or other specialised accommodation

hvac system

, for the purposes of performance H1.3.6 and in relation to a building, means a mechanical, electrical, or other system for modifying air temperature, modifying air humidity, providing ventilation, or doing all or any of those things, in a space within the building


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