Australia provides us with some of the best living conditions in the world. Despite this, there is still the very real threat of cyclones, particularly in cyclone-prone areas. We have previously looked into how to make sure your shed is cyclone rated, but what does it mean to be cyclone rated? And why is it so important to know this information in Australia?

Cyclone-Prone Areas

This map from Airocle below shows the areas in Australia which have a normal or intermediate threat of experiencing a cyclone, as well as the areas prone to tropical cyclones and severe tropical cyclones.

Map of Australia showing cyclone wind regions

Map of Australia showing the cyclone wind regions. Source: Airocle

If you identify the area you live in on the map above and you are not in a ‘normal’ zone, you should consider cyclone rated sheds, carports and fencing options for your home.

Cyclone Rated

A structure is cyclone rated if it is built in a way that enables it to withstand cyclonic conditions.

In some of Australia’s tropic regions, sheds must be built to withstand winds of up to 310km/h. The way in which these sheds are built vary significantly from ordinary sheds in low-wind regions of Australia. There are a number of structural elements which contribute to the cyclone-rating of the shed. Some of these elements include:

  • Footings: the shed must be secured to the ground and not just rely on it’s own weight to do so. These footings should comply with the recommended depth and weight below the surface level.
  • Roofs: should be firmly secured using specialised bolts and fasteners with proper roof cladding. The types of bolts and fasteners used can mean the difference between a roof staying attached to the shed structure or not during high winds. Using nails in the roof is not a good idea in high wind regions as they are very easily ripped out.
  • Guttering and pipes: if included in the shed design, these need to be firmly secured to the shed using specialised bolts and fasteners.
  • Doors: secured with barrel bolts. Cyclone-rated roller doors are also a good option to ensure the wind doesn’t break into the shed. If a door fails in cyclonic conditions, the pressure on the the roof of the shed is doubled, which can result in devastating consequences.

Getting It Right

Understanding the risk of cyclonic wind in your region and the difference a cyclone rated structure can make is very important. It’s in your best interests to ensure your shed is cyclone rated if you live in an at-risk region.

If you are in the market for a new shed or garage, you should deal with local shed suppliers only, as their local knowledge and latest engineering designs are what could keep your structure safe in times of severe weather events. Your local shed supplier should be well abreast of the most recent regulations of building sheds in cyclone-prone regions.

If you have any questions about cyclone rated sheds, garages, carports or fences, contact Steeline Sheds today for more information by calling 1300 736 123.