Most Sydney buildings over a couple of storeys have anchor points on the roof, but few owners know what type they have, what standard applies or when they were last inspected. This guide explains roof anchor points in plain terms for strata managers, building managers and owners: what they are for, the main types, when they are required in NSW and what an inspection should cover.
The short answer
A roof anchor point is a fixed point that a worker connects to so a fall from the roof edge is prevented or arrested. In NSW, anchors used for fall arrest and rope access should be selected, installed and maintained to AS/NZS 1891.4 and the manufacturer’s instructions, and inspected by a competent person at the interval the manufacturer sets, which defaults to no more than 12 months. Anchors that are damaged, out of date or installed incorrectly should not be used until they are fixed or replaced.
What roof anchor points are used for
- Fall arrest and restraint for trades working near an unprotected roof edge, such as plumbers, electricians, roofers and air conditioning technicians.
- Rope access for façade work: rope access painting, window cleaning, sealant replacement and façade repairs. Rope access technicians use two independent anchors for every drop, one for the working line and one for the backup line.
- Rescue, so a worker who has fallen can be reached and recovered quickly.
Common types of roof anchor points
| Type | Where you see it | What to watch for |
|---|---|---|
| Surface-mount anchors on metal roofs | Corrugated and trapezoidal sheet roofs on warehouses, schools and walk-ups | Correct number of fasteners, roof sheet thickness as specified, corrosion, leaks around the base |
| Anchors fixed into concrete (chemical or mechanical) | Concrete roof slabs and parapets on apartment and commercial buildings | Cracked or spalling concrete around the fixing, corrosion, missing tags. Chemical and friction anchors are load tested each year |
| Tile roof anchors | Pitched tiled roofs on low-rise strata and houses | Fixed to the roof structure under the tiles, so the fixing is not visible. Check records, flashing around the anchor and cracked tiles |
| Wall and parapet anchors | Façades, parapets and plant rooms | Edge distance, condition of the substrate, sealant around the fixing |
| Static lines (horizontal lifelines) | Long roofs and plant areas where people move along an edge | Line tension, end and intermediate brackets, the energy absorber, signage showing how many users |
Anchors are not interchangeable. An anchor rated and installed for fall restraint may not be suitable for fall arrest or rope access, and every anchor should be used only for what it was installed and certified for. A compliance plate or tag near the roof access point, plus a roof plan, should tell users which is which.
When are roof anchors required in NSW?
The NSW Work Health and Safety Regulation (Part 4.4, falls) and the SafeWork NSW code of practice on managing the risk of falls set a hierarchy of controls. In order, the person in control of the work should:
- do the work on the ground or on a solid construction where possible;
- use passive fall prevention such as guardrails or edge protection;
- use a work positioning or restraint system so a worker cannot reach the edge;
- use a fall arrest system, including anchors, where the higher controls are not reasonably practicable.
So the question is rarely “does the law say we need anchors?” and more often “how will people safely do the maintenance this roof and façade need?” If a building needs its windows cleaned, its façade painted or its gutters and plant serviced, it needs a safe way to do it. For many mid and high-rise buildings that means anchors and, where people move along edges, static lines or guardrails. Our height safety systems page compares the options.
Which standards apply?
- AS/NZS 1891.4 covers the selection, use and maintenance of industrial fall-arrest systems, including periodic inspection. The 2025 edition replaced the 2009 version.
- AS/NZS 5532 is the manufacturing standard for single-point anchor devices. It is not retrospective, so older anchors are not automatically non-compliant because they predate it.
- AS/NZS 4488 covers industrial rope access systems and calls for the rope access system to be inspected every 12 months.
- The manufacturer’s instructions, which often set the inspection interval, the fixing method and the roof or slab the anchor can be fitted to.
SafeWork NSW also notes that a fall-arrest system should limit the peak load on the worker and anchor during a fall to 6 kN, usually through an energy absorber in the lanyard or line. The anchor itself must meet the strength requirements of the standard it was designed to.
How often should roof anchor points be inspected?
At the interval the manufacturer specifies, and in any case at least every 12 months when no shorter interval is given. Inspect more often on coastal and corrosive sites, and before use if an anchor may have been damaged, has arrested a fall or has had roof work done around it. Our strata maintenance calendar shows how anchor inspections fit with window cleaning and façade work.
What a proper anchor inspection covers
- Records first. The installation certificate, roof plan, previous inspection reports and the manufacturer’s instructions.
- Visual check of every point. Corrosion, deformation, cracking in the substrate, missing or loose fasteners, sealant and flashing around the base.
- Load testing where required. For example, the annual load test of chemical and friction anchors.
- Tagging. Each anchor that passes is tagged with the inspection date and next due date. Anchors that fail are tagged out of service.
- Written report. Results for each anchor, photos of defects and what needs repair or replacement, so the owners corporation has evidence for its records and for contractors.
Problems we often find on Sydney roofs
- Inspection tags that expired years ago, with no report on file
- Surface-mount anchors fixed with fewer fasteners than the manufacturer requires
- Rust on anchors and fixings on buildings near the coast
- Anchors in the wrong places for the façade, so some drops cannot be reached safely
- Roof leaks around anchor bases where sealant or flashing has failed
- No roof plan showing where the anchors are or what they are rated for
FAQs
How often do roof anchor points need to be inspected?
At the interval the manufacturer specifies, and at least every 12 months when no shorter interval applies. Chemical and friction anchors are also load tested each year.
Can a contractor use our anchors if the tags are out of date?
They should not. A professional contractor will ask for current certification before using the anchors, and out-of-date anchors usually delay painting, window cleaning and repairs until they are inspected.
Can tile roofs have anchor points?
Yes. Tile roof anchors are fixed to the roof structure beneath the tiles, with the tile and flashing reinstated around them. Because the fixing is hidden, good installation records matter.
Do old anchors need replacing because of AS/NZS 5532?
Not automatically. AS/NZS 5532 is a manufacturing standard and is not retrospective. Existing anchors are assessed on their condition, their installation and the manufacturer’s requirements at each inspection.
Who is responsible for anchor points in a strata building?
Anchors on common property are generally the owners corporation’s responsibility, usually managed by the strata manager or building manager. Keeping current inspection records protects the people who use them and helps contractors start work without delay.
Anchors due for inspection? Ace Abseiling inspects, tests and certifies roof anchor points and static lines across Sydney, Wollongong and the Central Coast, and can carry out the façade maintenance from the same access. See anchor point certification or send us the building address for a quote. Call 1300 926 176.
