Floors
The floor area calculation does not include 'utility' rooms such as bathrooms and laundries with the exception of ensuites and centrally heated areas and those utility rooms surrounded by heated or cooled areas.
The floor material type whether timber, concrete slab on ground or suspended concrete slab, its area and the type of floor covering - carpet, no carpet, cork, floating timber,vinyl or ceramic tiles.
In the case of a 2 storey home whether the floor is upper or lower.
In the case of Apartments whether it is a 'shared' floor. i.e. the dwelling below is a separate residence.
The number of if any layers of foil under flooring.
Insulation levels under flooring
Sub-floor ventilation - enclosed perimeter, open perimeter or elevated.

External Walls
The total area of external walls [floor to ceiling height] with the various material type and insulation levels are listed. i.e. a home may have varying external cladding - brick veneer with R1.5 wall batts; double skin brick wall; weatherboard with R1.5; strawbale wall etc.
Whether or not the wall is a 'party' wall [as may be the case with Apartments]
Utility wall areas are not included except as above and with areas that can only be ventilated by mechanical means.

Ceilings
Area calculation as per floors with any variation in roof type, roof ventilation and insulation levels separated.
The layers of foil in the roof space.
Whether the ceiling is 'shared'. i.e. a separate dwelling above.
Roof types are nominated from -
'Attic standard' -a tiled attic roof;
'Attic low ventilation' -an attic roof with a metal covering or with sarking under a tiled roof;
'Attic vented' -an attic roof with ventilators added;
'Attic parasol' -the attic space is unenclosed with the roof merely shading the ceiling;
'Flat framed' -a flat roof with a metal or timber frame;
'Flat suspended slab'

Windows
Window areas, the direction they face and whether or not they are to 'utility' rooms are included together with the frame type, glazing type, whether external blinds are to be fitted, the height from the top of the window and the width of any fixed eaves or adjustable screening.
Details of overshadowing are included for each window.
The following situations are ignored - when a one storey or up to 3 meter obstruction is more than 10 meters from the face of the window. Two storey or 6 meter high obstruction more than 15 meters away. Three storey or 9 meter high obstruction more than 20 meters away. Obstructions further than 11 meters sideways are not included.
L-shaped [overshadowing] details such as may occur with courtyard walls are included, with the sideways distance from the window and the length of the wall for each window as the case may be.
In 'regulation' mode, heavy drapes, pelmets etc are not taken into account. The default setting is for standard venetian blinds.

Skylights
Skylights or 'roof windows' with the glazing type and slope [roof pitch] and size are included.

Level of cross flow ventilation
input : Good, average or poor.

Internal mass
The area of internal heavywieght walls defined as brick or blockwork or as lightweight block such as with aerated products.

Air leakage
Details include the number of wall/ceiling vents, exhaust fans sealed or unsealed, vented downlights, vented skylights, doors to utility rooms, external doors, unflued gas heaters, chimneys, weatherstripping to doors and windows. With 2 storey homes whether the stairwell is enclosed by doors and whether the entry door opens directly onto living areas.