Antai Solar Mounting Rack Compliance to AS Code 1170
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II. Planning the Module Area
1. Number of modules in the vertical direction × module height (please check also the installation manual
of the manufacturer of the solar panel)
2. Number of module in horizontal direction× (module width+17mm)+32mm
3. Horizontal spacing of the Fix Foot up to 2m
1
4. Vertical spacing of the Fix Foot-approx 1/2 to 3/4 module height
5. Distance between the modules:17mm
1
Caution: Installations that are exposed to the wind or are located on the edge or corners of the roof make
it necessary to leave smaller spacing.
III. Determination of Fixing Centres
1, Determine the wind region for the site of installation. Refer to AS1170.2:2002 Figure 3.1 for wind region A,
B, C, or D within Australia.
2, Determine the height of the installation above ground level
3, Determine the spacing of rail fixings based on table.
4. For Installations in Northern Territory solar panels are not to be placed within 1.2m of roof edges.
Installation conditions:
Wind loads to AS1170.2:2002
Wind average recurrence interval of 500 years
Wind terrain category 2.
Shielding and topography multipliers, Ms and Mt taken as unity.
Racks mounted on roofs of enclosed buildings of nominal rectangular shape.
Panel slopes up to 45° from horizontal.
Maximum solar panel length of 2.0m
Maximum solar panel width of 1.2m
Minimum of 2 rails supporting each panel
Maximum solar panel weight of 15kg/m
2
Roof structure to be checked and certified as suitable for applied rack loads prior to installation
Solar panels to be certified by manufacturer as able to resist wind loads in accordance with
AS1170.2:2002
