Vertex
Solar™ Pool & Spa Heating System
-- Installation & User Manual
© Copyright 2019 Optex Solar Pty Ltd. All rights strictly reserved.
Page 28
21.4
Terrain Category Definitions
Terrain Category 1:
Open terrain few obstructions. Example flat, treeless, poorly grassed plains.
Terrain Category 2:
Open terrain with scattered obstructions having heights from 1 .5m to 5m, with at least
two building type obstructions per hectare. Example farmland and cleared subdivisions with isolated trees.
Terrain Category 2.5:
Averaged intermediate between Terrain Category 2 and Terrain Category 3
Terrain Category 3:
Numerous closely spaced building obstructions having heights from 3m to 10m with at
least 10 house-size obstructions per hectare. Example fully developed suburb or light industrial estates.
21.5
Roof Edge Exclusions Zones
Note: Collector installations within a roof edge high wind loading zone will require
2 X
the
fixing strength in that local area. Collector installations within a roof corner high wind loading
zone will require
3 X
the fixing strength in that local area.
