Customer Update: National Construction Code Changes

From 1 May 2019, an important National Construction Code amendment comes into effect for all buildings, including sheds, built in wind regions A and B in accordance with AS/NZS1170.2-2011. The intent of the amendment is to help make buildings safer for those in Australia and New Zealand.

Taurean Door Systems (Taurean) has a number of compliant rated roller door options available which satisfy this amendment, including our NovaTaur Commercial roller door (N2 rating up to 3,090mm wide) and our WindLock Pr1me Series roller doors (up to 5,100mm wide).

Further information about these products are available in our Products section of this website or by contacting us at 1800 778 658.

 

What are the changes?

The amendment requires that sheds of all sizes are built to withstand higher internal pressures if the openings are not certified for the applied wind pressure. These changes will affect how we build and design sheds moving forward.

Specifically, the change relates to Section 5.3.2.2 and says:

“The full area of doors, including large access doors (e.g. roller doors) and windows that are normally closed, shall be considered to be openings, unless they are demonstrated to be capable of resisting the applied wind pressures.” (An extract from AS/NZS1170.2-2011 Amendment 4)

You can achieve this by using rated doors and windows capable of resisting N2 wind pressures when closed, or by modifying the building design. There will be no changes to wind regions C and D.

Wind loads and Taurean doors

To help customers understand what this means in terms of Taurean Roller Doors, the following wind load data refers to NovaTaur Commercial Roller Doors (non-windlock).

 

Taurean Door Systems

NovaTaur Commercial Roller Door (Non-Windlock)

Wind classification Description Maximum door width (mm)
N1 inwards: 0.69kPa  –  outwards: -0.73kPa 3750
N2 inwards: 0.95kPa  –  outwards: -1.02kPa 3090
N3 inwards: 1.49kPa  –  outwards: -1.59kPa n/a

Notes:

 

If you’re considering the Pr1me Series roller door (windlock option), the following wind load table will assist:

Taurean Door Systems

Pr1me Series Roller Door (Windlock Option)

Wind Classification   (AS/NZS 4505:2012) door width (mm)
Region Description 0 – 3650 3651-5015 5016-5030 5031-5100
N1 inwards: 0.69kPa  –  outwards: -0.73kPa  (outwards: -0.63kPa for door widths >4.0m)
N2 inwards: 0.95kPa  –  outwards: -1.02kPa  (outwards: -0.87kPa for door widths >4.0m) WindLock door
2.2 clips/m
WindLock door
3.7 clips/m
N3 inwards: 1.49kPa  –  outwards: -1.59kPa  (outwards: -1.37kPa for widths >4.0m) WindLock door
3.9 clips/m
WindLock door
4.1 clips/m
N4  to  N6 check AS/NZS 4505 for more information. (*) WindStrong doors

Notes:

 

More information

You can find more information about the code at https://ncc.abcb.gov.au/ncc-online/NCC. Simply create your own log in to download a free copy.

If you need more information regarding these changes and Taurean products, please phone 1800 778 658 or email customerservice@taureands.com.au