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Conditions

•  The available roof surface area should not be in the shadow of other buildings, antennas,             towers, chimneys etc.

•  Ideally, the sloped area should be facing south, but even when pointing SW or SE the loss of         power stays low.

•  For flat roofs it is recommended to use an elevation with an angle of entry of 30°.

•  A building permit for constructions on roof surface areas, flat roofs or facades is not                      required.

•  Different conditions apply for open area systems. Here, a land use plan, a land development         plan or a building permit is standard.