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installation instructions Edition 01/2012 en-GB-Intl (120508b)
5.8.
Visually appealing installation
In order to install the modules on a roof in a visually appealing
way, please observe the following guidelines:
5.8.1.
Substructure
Right-angled
Construct the substructure in such a way that mounting
surface is at a right-angle.
A parallelogram or trapezoid shape can create an optimal
surface for module installation, but it may make the module
field appear inaesthetic, which may not be desirable for the
operator.
The necessary width of the mounting rails is also
determined by the intervals between the rafters. A
horizontal displacement of the modules may result
in an undesirable protruding of rail ends in some
rows.
When laying out modules in a parallelogram or
trapezoid shape, offsetting the rows by a half or a
whole module width between neighbouring rows
may create the most attractive effect.
If necessary, plan an alternative module orientation
(e.g. horizontal) or plan with modules that have
different external dimensions.
Fig. 2 Module alignment in a parallelogram shape (offset at a
half-module interval)
Fig. 3 Module alignment in a trapezoid shape (offset at a half-
module interval)
Orientation of the rails
Lay rails that run parallel to the ridge horizontally.
Check the orientation of the rails, e.g. with a spirit
level and a masonry cord.
Lay rails that run vertically to the ridge so that their upper
edge is horizontal.
Check the orientation of the rails, e.g. with the help
of a square, a spirit level and a masonry cord.
5.8.2.
Modules
Horizontal orientation
Always mount the modules so that one module side
has a horizontal orientation. For vertical installa-
tion, this is the short side, in horizontal installation,
the long side.
Check the orientation of the modules, e.g. with a
spirit level and a masonry cord.
NOTICE
Avoid a slanted orientation of the modules in which
none of the module sides are horizontal. Such an
orientation may, in some situations, optimise the roof
surface for mounting the modules, but, the module field
may be far less aesthetically pleasing ('saw-tooth
pattern') which is almost always undesirable for the
operator.
Fig. 4 Module orientation to be avoided (no horizontal edge)
Interval between frames
Leave a gap of at least 3 mm between individual frames (see
also Ch. 7.4.1, 'Spacing between the module frames').
GID AS055a
GID AS057a
GID AS056a
