Panel: maximum dimensions 1800x1100 mm (21 kg) Panel: maximum dimensions 2100x1100 mm (24 kg)
X= the required ballast is higher than will t under the system. The system must be mechanically attached to the roof. Please contact Van der Valk Solar Systems.
* If you use tiles of different sizes and thus another weight, you need to adjust the number of tiles to get the right weight.
Environmental factors
Position Middle zone roof
Terrain category IV (city)
Height above sea level 350 m
Exclusief North German Lowland
Roof materials Bitumen
Windmap Germany
Required ballast | Germany
General
The ValkDouble® mounting system must be reinforced by means of tiles, which must be placed on the
indicated ballast foundations. In three steps you can easily calculate the required ballast;
• determine the wind area on the windmap
• choose the wind area and building height in the table
• you can now read the number of tiles / kg
Note 1: The extra ballast must be equally divided over the ballast foundations.
Note 2: The max. of 16 tiles can be placed for extra ballast (144 kg).
Building height 0 - 5
meter
5 - 7
meter
7 - 9
meter
9 - 12
meter
12 - 15
meter
1 (22,5 m/s) 28,0 28,0 28,0 28,0 28,0 kg
3,5 3,5 3,5 3,5 3,5 tiles
2 (25 m/s) 49,0 49,0 49,0 49,0 49,0 kg
5,5 5,5 5,5 5,5 5,5 tiles
3 (27,5 m/s) 81,0 81,0 81,0 81,0 81,0 kg
9,0 9,0 9,0 9,0 9,0 tiles
4 (30 m/s) 122,0 122,0 122,0 122,0 122,0 kg
14,0 14,0 14,0 14,0 14,0 tiles
Building height 0 - 5
meter
5 - 7
meter
7 - 9
meter
9 - 12
meter
12 - 15
meter
1 (22,5 m/s) 40,0 40,0 40,0 40,0 40,0 kg
4,5 4,5 4,5 4,5 4,5 tiles
2 (25 m/s) 67,0 67,0 67,0 67,0 67,0 kg
7,5 7,5 7,5 7,5 7,5 tiles
3 (27,5 m/s) 111,0 111,0 111,0 111,0 111,0 kg
12,5 12,5 12,5 12,5 12,5 tiles
4 (30 m/s) X X X X X kg
X X X X X tiles
Ballast
foundations
