How do you determine the wind classification?
Choose your wind region based on the dwelling location. To determine the wind classification for your domestic building site you must consider 4 factors: the Region, the Terrain Category, a Shielding Factor and the Topography. This information is to be used as an approximate guide for residential structures only.
What is N1 wind classification?
N1 (Non-Cyclonic) N/A. W28. N2 (Non-Cyclonic)
What is N1/N2 wind classification?
Wind Classifications
| Wind Class | Notation | Serviceable Wind Speed (m/s) |
|---|---|---|
| N1 | W28 | 26 |
| N2 | W33 | 26 |
| N3 | W41 | 32 |
| N4 | W50 | 39 |
What is wind region D?
Wind Region D = Ultimate Design Wind Speed ~ 317km/h – Cyclonic.
How are cyclones measured in Australia?
When a system becomes a Category 3 tropical cyclone it is reclassified as a Severe tropical cyclone and has wind speeds of 64–85 kn (74–98 mph; 119–157 km/h)….Australian tropical cyclone. intensity scale.
| Category | Sustained winds | Gusts |
|---|---|---|
| One | 34–47 kt 63–88 km/h | 49–67 kt 91–125 km/h |
What is a N4 wind rating?
N4 (Non-Cyclonic) C2 (Cyclonic) W50. N5 (Non-Cyclonic) C3 (Cyclonic)
What is N4 wind classification?
N4 (Non-Cyclonic) C2 (Cyclonic)
What wind rating is Bundaberg?
Coastal areas north of Bundaberg are classified as Wind Region C. Homes in this area are designed to resist a cyclone with winds of 250 kilometres per hour, which the Bureau of Meteorology classifies as a mid-category four.
Is Bundaberg wind region C?
What is a Category 2 cyclone?
A Category 1 tropical cyclone is estimated to have 10-minute sustained wind speeds of 34–47 kn (39–54 mph; 63–87 km/h), while a Category 2 tropical cyclone is estimated to have 10-minute sustained wind speeds of 48–63 kn (55–72 mph; 89–117 km/h).
Is N3 cyclone rated?
N3 rating – the minimum rating for your new home Approximately 96% of all the blocks of land on the Sunshine Coast are N3, 3% are N4 and only 1% are any of the other classes.
How would you classify the wind?
not present WIND CLASSIFICATION WIND CLASSIFICATION Gust Wind Speed (m/s) Gust Wind Speed (m/s) RegionsA and B Regions C and D N1 (Non-Cyclonic) N/A W28 N2 (Non-Cyclonic) N/A W33 N3 (Non-Cyclonic) C1 (Cyclonic) W41
What is a wind region?
Wind Region Wind region refers to categorization of different areas of Australia based on the wind that each area experiences on average.
What is windwind classification of construction sites?
Wind classification of your construction site is actually quite an important consideration to note and is outlined in the Australian Standards. In particular, it has everything to do with bracings and tie-down fixings, both of which will affect how your design turns out.
What is the difference between terrain category and wind region?
Wind region refers to categorization of different areas of Australia based on the wind that each area experiences on average. Terrain category refers to the area around your site. The surrounding objects may act as blocks that may reduce wind speed.