Installation Guide / SolarRoof Terracotta Tile
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Code-Compliant Planning and Installation Guide V 1.0 - Complying with AS/NZS1170.2-2011 AMDT 2-2016
- Planning -
Determine the Terrain Category
You will need to determine the terrain category to ensure the installation meets the required standard.
Terrain Category 1 (TC1) – Very exposed open terrain with few or no obstructions and enclosed, limited-sized water
surfaces at serviceability and ultimate wind speeds in all wind regions, e.g. flat, treeless, poorly grassed plains; rivers,
canals and lakes; and enclosed bays extending less than 10km in the wind direction.
Terrain Category 1.5 (TC1.5) – Open water surfaces subjected to shoaling waves at serviceability and ultimate wind
speeds in all win regions, e.g. near-shore ocean water; larger unenclosed bays on seas and oceans; lakes; and enclosed
bays extending greater than 10km in the wind direction. The terrain height multipliers for this terrain category shall be
obtained by the linear interpolation between the values for the TC1 and TC2.
Terrain Category 2 (TC2) – Open terrain, including grassland, with well-scattered obstructions having heights generally
from 1.5m to 5m, with no more than two obstructions per hectare, e.g. farmland and cleared subdivisions with isolated
trees and uncut grass.
Terrain Category 2.5 (TC2.5) – Terrain with a few trees or isolated obstructions. This category is intermediate between
TC2 and TC3 and represents the terrain in developing outer urban areas with scattered houses, or larger acreage
developments with fewer than ten buildings per hectare. The terrain-height multipliers for this terrain category shall be
obtained by linear interpolation between the values for the TC2 and TC3.
Terrain Category 3 (TC3) – Terrain with numerous closely spaced obstructions having heights generally from 3m to 10m.
The minimum density of obstructions shall be at least the equivalent of 10 house sized obstructions per hectare, e.g.
suburban housing or light industrial estates.
Terrain Category 4 (TC4) – Terrain with numerous larger, high (10m to 30m tall) and closely-spaced constructions
buildings, such as large city centers and well-developed industrial complexes.
If your installation site is not at TC 2, 2.5 or 3, please contact Clenergy to obtain a project specific engineering certificate
to support your installation.
Verify Atmospheric Corrosivity Zone of Installation Site
Please refer to “AS 4312-2008 Atmospheric Corrosivity Zones in Australia” or consult local construction business to
verify corrosivity category of installation site to determine appropriate products and interface spacing. When standard
products are installed in high corrosivity zones, like C4/C5, interface spacing reduction factor need to be applied.
Please refer to the generic notes of Certification Letter for the details.
Note: Clenergy provided screws for Tin interfaces are suitable for up to C3 corrosive environments only.
Determine the Height of the Installation Site
This document provides sufficient information for the PV-ezRack® SolarRoof system installation up to heights of
30 meters. If your installation site is more than 30 meters high, please contact Clenergy to obtain project specific
engineering certificate to support your installation.
