© Wikora GmbH
Page 6
Status: 27.04.2015
Errors excepted.
3.2 On roof mounting
3.2.1 Positioining of collectors
Wind loads on roofs can create suction forces on the solar
collectors. In order to minimize suction forces, the distance
between the outer edge of the roof and the collector should be
minimum 70 cm (about 3 tiles). The distance from the roof ridge
should be approx. 2 tile rows (see fig. 1).
. Fig. 1: Positioning of collectors
3.2.2 Fixation of brackets
Measure the area of the collector field on the roof and define the position of the brackets (see
fig. 2 and 3). Brackets should be installed dimensionally mediated according to the number of collectors.
The distances between the upper and lower profile rail are as follows (see fig. 4):
On roof mounting
vertical
1500 – 1600 mm (WIKOSUN 2010) 1800 - 1900 mm (WIKOSUN 2510)
horizontal
800 - 900 mm
Flat roof mounting
vertical
1705 mm (determined by drill holes in carriers)
horizontal
8155 mm (determined by drill holes in carriers)
Installation takes place in such a manner that the laces of the fastener penetrate the roofing at the deepest point of each tile.
Fig. 2: Measuring of roof area
Fig. 3: Roof opening
Fig. 4: Adjustment of profile rails
Always ensure that three rafter bolts 8 x 80 are screwed into the rafter for each bracket. The rafter bracket bolts must be
screwed at least 1 cm in from the edge of rafter timbers.
Fig. 5: Fixation of brackets
