The safety of your rooftop has always been your problem, but now, under new changes in the Workplace Health and Safety Act, you might go to jail if something happens on your rooftop. You always had a duty of care, but now you must prove that you exercised that duty of care, and that you knew what the air conditioning contractor or tiler or roofer was doing on your roof, and how they were going to stay there!
That's where Rooftop Safety Systems can help. Ground audits, rooftop audits, compliance documentation, ladder safety checks, signage, anchor points etc; these all need to be installed properly to ensure that you have acquitted your duty of care.