6 Ways Top End Homes Are Built to Resist Cyclones

New homes in the Top End must be designed and built to resist cyclonic winds, using engineered structures that tie the roof, walls and slab together into a continuous load path. The exact requirements depend on your wind region and site, so your builder and engineer will confirm what applies to your block.

The 6 ways

1. Engineered design. Structural plans certified for local wind loads.
2. A continuous load path. The roof is tied to the walls, and the walls are tied to the slab, with specified connectors and tie downs.
3. Cyclone rated roof fixings. Screws, battens, straps and tie downs at specified spacings.
4. Rated windows and doors. Built for wind pressure, and in some cases for debris impact.
5. Slab and footings. Designed for the soil type and for wind uplift.
6. Staged inspections. Checks on fixings and connections as the build goes up.

Why it matters

Cyclone design is about keeping the building envelope intact. Once a window or roof fails, wind pressure inside the house can lift the structure apart. Good detailing and quality fixings are what save homes.

5 questions to ask your builder

1. What wind region and design wind speed apply to my block?
2. Who certifies the structural design?
3. How are the roof and wall connections inspected?
4. Do the windows and doors meet the required ratings?
5. Is anything extra needed for my site or design?

This article is general information, not engineering or legal advice. Confirm current requirements with your builder, engineer and certifier.

Frequently asked questions