Solar PV Tiles – Installation Instructions
18 July 2012
Page 5 of 13
Additional strings of PV tiles connected in electrical series can be connected to the inverter
using the other sets of + and – inputs available on the inverter box. Note the maximum
number of PV tiles that can be connected to the inverter is only limited by the capacity of the
inverter. Check that the inverter has sufficient capacity for the size of the array being
connected. For large projects more than one inverter may be required.
The circuit diagram below shows the recommended cabling plan (not to scale) for 2 strings of
4 PV tiles each connected to a single inverter.
2.2 FELT & BATTENS
Felt and batten the roof in the normal manner ensuring the roofing underlay is laid with an
approximate 10mm drape between rafters and that the tiling battens are laid at the
appropriate gauge for the PV tile type to be used (see relevant section to follow for the
specific PV tile being installed).
2.3 MARKING POSITION
To make sure the PV tile array is installed in the correct position of the roof, it is
recommended that you first mark out the area where the PV tiles are to go before you begin.
It is also recommended that the position of the inverter(s) within the building in relation to the
PV array is (are) identified.
2.4 RAFTER PITCHES & LENGTHS
For Cambrian Slate, Mini Stonewold, Mockbond Mini Stonewold, Landmark Double Pantile,
Grovebury, Landmark Double Roman, 50 Double Roman, DuoPlain, Richmond 10, Saxon 10,
Landmark Slate 10, MockBond Richmond 10, Natural Slate and Plain Tiles (including
Rosemary Clay Plain Tiles) follow the appropriate PV tile installation instructions in following
sections. The maximum rafter length for flat interlocking tiles and slates at minimum rafter
pitch is 10 m. (9 m for Natural Slate in moderate exposure areas, 6 m in severe). Please
contact Technical Solutions for further advice on rafter lengths. Note that the minimum and
maximum rafter pitch for use of each of the Redland Solar PV tiles is shown in the table
below:
