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Rev. 08.08.23 MANUAL FOR FLATFIX FUSION MOUNTING SYSTEM FOR FLAT ROOFS
Points to consider during system design and installation:
The installation of a PV system on an existing building changes the building loads (e.g. snow / wind) or the building
structures that previously applied. To prevent personal injury and/or material damage, it is necessary to have the static load
calculations for the existing building revised by a qualied technician. The current regulations must be taken into account, in
particular NEN6702, NEN7250, NEN1991-1-1-4 A1 + C2/NB. Failure to revise the static calculations of the building can, in
the worst case, lead to collapse (of the supporting structure) of the building. Consultation with the insurer is recommended
in case of structural changes. Roofs are always subject to vibration and movement. This can be caused by, for example,
activities in the building, weather inuences, thermal effects or seismic activity, which can cause PV systems to move, slide
or sag. In some cases it may be necessary to x/anchor the PV system to the roof. When setting out the edge and corner
zone of a building, current regulations must be observed. When an edge-corner zone is specied by Esdec, this is the
minimum edge-corner zone. Placing solar panels in the edge and corner zone of a building is always at your own risk and is
strongly discouraged.
Among other things, the following items must be structurally checked and found to be in good order by, for example, a
structural engineer:
• The loads occurring as a result of the additional weight of the complete PV system on the building.
• The loads occurring as a result of the changed geometry of the roof surface on the building.
• The loads occurring as a result of the static load of the PV system on the building.
• The loads occurring as a result of the dynamic wind pressure and possible accumulation of precipitation on the building
and the PV system.
• The loads occurring during installation on the building, roof construction, roong and insulation.
• The long-term compatibility of the insulation and roong at the contact points of the PV system support structure due to
the point pressure.
• The compatibility of the roof covering in combination with the PV system at the location of the contact points.
• The thermal effects of the building and the PV system on each other.
• The effect of any movement and vibrations of the roof and the PV system on each other.
Despite the care taken by Esdec employees and in the software to ensure that calculations are performed carefully,
no rights can be derived from these calculations. Prices in the software, catalogues, quotations, etc. are advisory and
may change as a result, for example, of rising commodity prices or levies. Calculations, drawings and dimensions in
the software, catalogues, quotations, etc. are advisory and no rights can be derived from them. Our general terms and
conditions apply to all systems and services supplied by us. In addition to the above points, our general terms and
conditions must be read and understood in detail before proceeding with installation. When placing an order with Esdec,
you fully agree with the above.
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