AS4285 – 2007
Size of Skylights
The table below refers to skylight sizes commonly available throughout Australia. For practical purposes this table shows them as applied to typical rooms in Australian residential buildings where the skylights are not the only natural source of light. This table is based on many years of industry experience. Other points to be considered when determining the correct skylight size for a room is the aspect of the skylight location on the roof, geographic location within Australia, length shape and reflectivity of the light shaft and ventilation requirements. Reference should be made to the Building Code of Australia (BCA) or local authority requirements for final selection.
Skylights Selection
|
Room |
Approximate room size (m2) |
Minimum recommended skylight size |
|
Living/family Dining Kitchen |
17.0 13.0 9.5 |
800 x 800 or 2 x 400 mm tubular 550 x 550 or 1 x 400 mm tubular 550 x 550 or 1 x 400 mm tubular |
|
Bathroom main Bedroom Bathroom – ensuite |
7.0 11.0 2.5 |
550 x 550 or 1 x 400 mm tubular 550 x 550 or 1 x 400 mm tubular 400 x 400 or 1 x 250 mm tubular |
|
Hallway * Laundry Toilet |
4.0 3.5 1.5 |
400 x 400 or 2 x 250 mm tubular 400 x 400 or 1 x 250 mm tubular 400 x 400 or 1 x 250 mm tubular |
|
Walk-in wardrobe Pantry |
2.0 2.0 |
400 x 400 or 1 x 250 mm tubular 400 x 400 or 1 x 250 mm tubular |
* Hall way 1.5 metres wide, exceeding 3.5 metres long one 400 x 400 mm or one 250 mm tube type per 4m of hallway
** Recommendation based on specular reflectivity for tubular skylights and diffuse for other types.
Acknowledgements: Skylight Industry Association Inc.