SEPP 65 - Apartment Design Guide

04 I BuildingPerformance criteria4Q-1All habitable rooms are naturally ventilatedAcceptable solutions1. Orientation of building maximises capture and useof prevailing breezes for natural ventilation2. Rooms have appropriate depths (see Section 4NApartment layout)3. Unobstructed window openings are equal to atleast 5% of the floor area served4. Doors and operable windows maximise naturalventilation opportunities established by theapartment layout, using a number of the followingdesign solutions:• adjustable windows with large effectiveopenable areas• a variety of window types that provide safetyand flexibility such as awnings and louvres• windows which the occupants can reconfigureto funnel breezes into the apartment suchas vertical louvres, casement windows andexternally opening doorsFigure 4Q.3 Operable balcony screens allow occupants to customise theirenvironment and regulate access of natural light and ventilationPerformance criteria4Q-2Natural ventilation for single aspect apartments ismaximisedAcceptable solutions1. Apartment depths are limited to maximiseventilation and airflow. See figure 4Q.1Xceilingheight2. Light wells are not the primary air source forhabitable rooms6XFigure 4Q.4 Where greater than the minimum ceilings heights are provided,the allowable depth of dual aspect apartments can increaseusing a ratio of 6:1 (apartment depth = 6 x ceiling height)3. A number of the following design solutionsare used:• primary windows are augmented with plenumsand lightwells (generally not suitable for crossventilation)• solar chimneys, stack effect ventilation orsimilar to naturally ventilate internal buildingareas or rooms such as bathrooms andlaundries• lightwells or building indentations with a widthto depth ration of 2:1 or 3:1 where possibleto ensure effective air circulation and avoidtrapped smellsDRAFT | Apartment Design Guide I September 2014113