Choosing the correct anchor points Sydney can be difficult because the anchors are not easily installed on roofs. They require a complex installation system which must be done by a professional. Roof anchor points are very useful when working on rooftops in Australia. Working on rooftops can be very dangerous. That is why the people working on the rooftop of a building try to take maximum safety measures to prevent any unfortunate event. In most cold countries, roofs are sloping downwards on both sides from the middle. This is why it becomes hectic to renovate or maintain these roofs.