
4 Planning the module field
Theta Installation manual 8
ENGLISH
4 Planning the module field
4.1 Operating conditions
Application range Pitched roof
Roof covering Any
Roof pitch Depending on the regular roof pitch
of the remaining roof covering, min.
of 10°; max 45°
PV module Any size
Roof construction The roof construction must have ade-
quate load-bearing capacity. The roof
structure must comply with national
requirements and standards (for
example, rear ventilation).
Building height Max. 12 m
Snow load Max. 1.44 kN/m²*
Wind load Max. 39 m/s*
Roof batten spacing Max. 320 mm**
Roof batten
thickness Min. 35 mm
Roof batten width Min. 35 mm
* The maximum values may vary, depending on module size, building and
location.
**Applies to installation on existing battens. For installation on new bat-
tens: Position the battens at the quarter points of the modules.
Module field planning is based on:
| Module size (L x W x H)
| Module positioning (portrait, landscape)
| Number of modules
| Roof batten spacing
Additional roof battens
If the existing roof battens do not correspond to the
required points in the module field, additional roof bat-
tens will be necessary at the following points:
| Fixation of upper adapters
| Fixation of the sealing strip
| Fixation of the top flashing.
Additional roof battens and their respective fixing mate-
rials are not included in delivery.
Planning information
The following must be observed for planning the module
field:
| The standard Theta components are designed for
mounting the module field into a tiled roof. Mounting
on other types of roof coverings must always be
done by a professional roofing company.
| There must be a distance of at least three rows of
tiles between the top edge of the module field and
the roof ridge. If this is not the case, the top edge
completion must be performed by a roofing com-
pany to guarantee the water tightness and durability
of Theta. Should the ridge tiles not be fixed, then
there must be a distance of at least one row of tiles
between the top edge of the module field and the
roof ridge.
| Direct connections of the module field to the roof
ridge, roof verge or the eaves must be performed by
a professional roofing company in all cases.