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Snow and wind loads
The load on the collector array is a combination of wind and snow loads which
are determined by the dimensions of the building, the roof shape and the
location. A precise calculation of the assumed loads must be carried out for
each specific installation, in line with EN 1990 (+NA) and EN 1991 (+NA) and
under consideration of regional regulations.
F3-1 collectors may be used for pressure and suction loads of up to
2.4 kN/m². By using the snow load extension set, the maximum permissible
pressure load may be increased to 4 kN/m².
F3-1Q / F3-Q collectors may be used for suction loads of up to 2.4 kN/m²
and pressure loads of up to 4 kN/m².
For safety reasons, the cross battens, rafters and roof tiles under the roof
hooks must not show signs of previous damage (cracking, drill holes, ageing),
else they will not withstand the loads to which they are subjected. If in doubt,
replace the battens and roof tiles in those sections.
We recommend the use of metal tiles below the roof hooks, particularly in
areas of high snowfall.
To avoid peaks in wind load we strongly recommend 1 metre minimum clearance
between the collector array and the roof edge (or ridge).
Additional loads caused by drifting snow or snow guards and by snow falling
from higher roofs should also be taken into consideration.
In areas where snow loads are significant we recommend a roof-integrated
installation.
Snow and wind loads
Summary of Contents for TopSon F3-1
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