Roof Access Ladders

Aluminium roof access ladders

Roof Access WA provides aluminium ladders for roof access on commercial buildings throughout Perth and regional Western Australia. These include step, parapet, angled caged, vertical line and concealed ladders.

Roof Access WA is a certified Sayfa Products installer. Sayfa ladders include brand names; Katt, ALTO, Kombi Stairs & Platforms.

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Regulations for roof access ladders

In WA, there is a requirement to provide a fall arrest system on a fixed ladder if there a risk of a fall of 3m or above. This requires fixed ladders to have either fall prevention cages or a fall arrest device.

If we look to the hierarchy of control angled caged ladders are the preferable option for rung type fixed ladders over 3m. This is followed by a vertical line ladder. A vertical caged ladder is not considered to have any fall arrest values.


Access ladder selection

As per the selection of access, as described in AS1657-2018: The step ladder should be used between 60 and 70 degrees and a rung type ladder should be used between 70 to 90 degrees. The optimum pitching angle for a rung ladder is 75 degrees.

All ladders are required to have even spacing between the rungs, with a variance of 10% allowed for the bottom rung. Ladders are also required to have a landing at their head and base.

A temporary ladder can also be used to gain access to elevated areas up to a height of 6m.

You can use mini ladders between different levels where a risk of a fall is less than 3m and parapet ladder to bridge parapets will a platform and access either side.

Internal ladders are a great option when you are not able to gain roof access from the outside of the building. This can be a concealed access that offers more security, simply with limited access.

Internal concealed ladders, with the fold-down option, offers better utilization of the building’s floor area.


All Roof Access WA installs comply with:

  • AS/NZ 1891-1, 2, 3 & 4 – Fall Arrest Systems
  • AS 1657-2018- Fixed Platforms, Walkways, Stairways and Ladders
  • AS/NZS 4488 Parts 1 & 2: Industrial Rope Access Systems
  • AS/NZS 1319 Safety Signs for Occupational Environment
  • Worksafe – Code of Practice – Safe Design of Buildings and Structures