Above roof installation — PV modules vertical
Rafter clearance
Snow load
Height
zone
above sea
level
m
200
300
400
I
500
600
700
800
200
300
400
500
II
600
700
800
900
200
300
400
500
III
600
700
800
900
1000
200
300
400
500
IV
600
700
800
900
1000
This area is not covered by any of the mounting rails.
mm 750
Snow load
Rail profile
kN/m
2
0.75
0.75
0.75
0.75
0.85
1.05
1.25
0.75
0.75
0.75
0.90
40 x 40
1.15
1.50
1.85
2.30
0.75
0.75
1.00
1.25
40 x 40
1.60
2.00
2.55
3.10
3.80
1.00
1.15
40 x 40
1.55
2.10
2.60
3.25
3.90
4.65
5.50
(cont.)
1000
1250
40 x 40
40 x 40
40 x 40
44 x 44
44 x 44
40 x 40
40 x 40
44 x 44
44 x 44
40 x 40
40 x 40
44 x 44
44 x 44
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