July
2020
Note 10.
No consideration has been taken on the effect that the solar panel will have over the roof
structure. It has been assumed that the roof will be able to resist the additional loadings imposed by
the installation of the solar panels in conjunction with the Clenergy Mounting System.
Note 11.
All components from Clenergy must be installed according to manufacturer's specification
and the instructions shown in the relevant installation manual. Please check the Clenergy Australia
website or contact them for access to the most recent installation manuals.
Note 12.
No consideration has been taken on the effect of snow loads. In case the roof is located in
a snow prone area, a special design must be made.
Note 13.
Minimum grade for steel purlins/battens of 450 Mpa.
Note 14.
If any of the screws of the interfaces go into pre-existing holes, they will have to be one
size up compared to the screws that were previously installed. This is to ensure that the pullout
capacity remains the same or higher.
Note 15.
Zone reduction factors to be the following:
-
Intermediate: Divide table spacings by 1.5
-
Edge: Divide table spacing by 2
-
Corner: Divide table spacing by 3
Example: To find out a fixing spacing on the intermediate zone for a 5-meter building on wind region
A, terrain category 3, roof pitch less than 10° and using ER-R-ECO rail, take the respective spacing
from table 1.1 which is 1.88m and divide it by 1.5. The result would be 1.25m which would be the
corresponding fixing spacing for intermediate zone for the previous scenario.
Note 16.
The interface spacings are based on the solar panel row spacing of up to 400 mm. When
the row spacing is over 400 mm an interface spacing increase factor of 5% can be applied. When the
row spacing is over 650 mm an interface spacing increase factor of 20% can be applied.
Note 17.
Minimum of two (2) screws per fixing point when using ER-R-MT rail
and one for ER-R-
ECO.
Note 18.
If the installation is located in ISO corrosivity category C4 reduce the interface spacing by
5%. If the installation is located in ISO corrosivity category C5 reduce the interface spacing by 25%.
Note 19.
Fixing spacing to be reduced on increased according to the purlin thickness as per below:
Purlin Thickness
From 1.2mm to
1.49mm
From 1.5 mm to
1.89 mm
From 2.4 mm and
above
Reduction of 60%
Reduction of 30%
Increase of 17%
