Roof cleaning and house washing in Calga

What builds up on Calga homes beside the interchange?

Calga takes its name from an Aboriginal word meaning the mouth, and its main feature is a state heritage-listed Aboriginal women's site that includes a sandstone amphitheatre. The Australia Walkabout Wildlife Park is here too. The 2021 Census counted 51 private dwellings; 85.1% of occupied homes were separate houses, and 42.6% had four or more bedrooms.

Walls, gutters and garage doors close to a major interchange gather a film of road grime. COLORBOND suggests hosing the parts rain never reaches, such as under the eaves and along the top of a garage door, at least every six months. A low-pressure house wash lifts that film, and the bigger roofs that four-bedroom homes carry get a soft roof clean rather than a pressure wand.

Key figures

51

private dwellings counted in Calga in 2021

42.6%

of occupied homes had four or more bedrooms

Sources

• Wikipedia, Calga
• ABS 2021 Census QuickStats, Calga
• BlueScope TB-4, maintenance of exterior coated steel (January 2021)
• NSW Spatial Services, Administrative Boundaries (postcode, council, distance, neighbours)