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INSTALLATION AND OPERATION MANUAL FOR FLAT ROOF SYSTEM Q.FLAT-G5 – Q CELLS
INSTALLATION AND OPERATION MANUAL FOR FLAT ROOF SYSTEM Q.FLAT-G5 – Q CELLS
3 PLANNING
3.1 REQUIREMENTS
Dimensional report
The dimensional report is decisive for the precise planning of the
Q.FLAT-G5 and is available in the Q CELLS ROOFTOP PLANNER
or directly from the Q CELLS representative.
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Inspect the roof before planning.
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Measure the entire field (use measuring tape).
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Observe distances to the parapet wall (if applicable).
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Take note of edge distances and roof structures.
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Fill out the dimensional report exactly with all necessary
information.
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In case of queries: Contact your Q CELLS representative.
([email protected])
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Determine the coefficient of static friction using the static
friction kit and enter it in the static friction report.
Roof structural analysis
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It is the responsibility of the client to ensure that the roof’s load
bearing reserves (as specified in the structural analysis) can
support the additional load from the Q.FLAT-G5 (PV system
+ ballast). This also applies for the load transmission by the
roof cladding and insulation located below.
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Before mounting equipment on the roof, the roof structural
analysis must be tested by the client and a structural engineer,
and the corresponding bearing load reserves must be tested
and approved for the installation of a PV system. It must also
be ensured that the thermal insulation used can withstand the
pressure load by the ballasted Q.FLAT-G5 (min. application
type DAA ds according to DIN4108-10).
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The wind and snow loads must be determined by a structural
engineer.
Lightning protection and potential equalisation
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The Q.FLAT-G5 flat roof system is not a body of electrical
operating equipment according to the definition of VDE 0100-
541.3.1. Nor is it an external conductive part according to
DIN VDE 0100-541.3.7, as it cannot introduce any external
electrical potential (especially not external local earth potential)
and does not belong to the parts of a building structure listed
under DIN VDE 0100-411.3.1.2, which have to be added to
the protective potential equalisation.
•
In the broadest sense, the Q.FLAT-G5 flat roof system is a
metal construction that only bears operating equipment of
safety class 2. A protective potential equalisation according
to VDE 0100-410.3.9 can therefore be omitted.
•
However, to increase safety on the roof and make it easier
to carry out the insulation measurement during the regular
repeat tests on the system, we recommend realising a potential
equalisation with our accessory cables and connecting the
entire system to the main earthing rail at a point with minimum
6 mm² CU cables.
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The optional potential equalisation can be realised via the
rivet nuts located in the ground profiles and ballast carriers.
NOTE
!
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The lightning protection system must be assessed individually
for each solar system by a lightning protection specialist in
accordance with DIN VDE 0185 305 3 supplement 5 (DIN
EN 62305 3 supplement 5), and must also be installed or
removed by a specialist company.
Basic components
The Q.FLAT-G5 comprises three components as a standard: the
ground profile, the ballast carrier and the end support. Depending
on the module dimensions used, 60 line or 120 line modules, two
different ballast carriers are offered in order to optimally adapt
the Q.FLAT-G5 to the module dimensions. The ground profile
with pre-assembled middle support columns and end supports
is available to match the roof type. Depending on the roof cover,
either aluminium-laminated building protection mats (sheet roof
cladding) or non-laminated building protection mats (bitumen
roof cladding) are used.
The choice as to which modules are installed and the decision
regarding which roof cladding is to serve as a base can and must
be done in the Q CELLS ROOFTOP PLANNER. This specifies
the correct materials and the roof can be planned accordingly.
NOTE
!
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Upon delivery, please check that the components are com-
plete and intact.
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Check all riveted joints for completeness on the pre-assembled
ground profile.
3 PLANNING
3.2 COMPONENTS
FIGURE
SAP NO.
MATERIAL
DESCRIPTION
20005100
Steel + rubber
gra
stainless steel
Q.FLAT-G5 ground profile pre-assembled for sheet
roofs:
Middle support column, end support, building protec-
tion mat with aluminium lamination
20005180
Steel + rubber
gra
stainless steel
Q.FLAT-G5 ground profiles pre-assembled for
bitumen roofs:
Middle support column, end support, building protec-
tion mat without aluminium lamination
20005101
Steel +
stainless steel
Q.FLAT-G5 ballast carrier, short 1623 mm:
for 60-cell solar modules (e.g. Q.PEAK-G4.1), with
notch for differentiation
20005102
Steel +
stainless steel
Q.FLAT-G5 ballast carrier, long 1638 mm:
for 120-half-cell solar modules (e.g. Q.PEAK DUO-G5)
20005103
Steel + stainless
steel + plastic
Q.FLAT-G5 end clamp with screw
