
Special installation conditions
56 VELUX
4
When installing VELUX roof windows as
skylights, ie out of reach, consider choosing
electrically operated roof windows GGL
INTEGRA
®
/GGU INTEGRA
®
or GGL Solar/
GGU Solar.
Alternatively, it is recommended to lead
a cable to the window, see page XX. This
makes retrofitting of electrical accessories
such as window operators and electrically
operated decoration and sunscreening
possible.
The installation of the roof window follows
standard installation procedures.
INSTALLATION IN LIGHT SHAFT
In buildings with unused attics, VELUX roof
windows can be installed as skylights by
establishing a light shaft.
Ensure all trimming work is carried out to
structural requirements where necessary.
Observe the following:
• The light shaft must allow the window to
be rotated 180 degrees to cleaning pos-
ition, see illustration below.
Window installed as skylight
A
Roof
pitch
Window size Size/cm
X02
78
X04
98
X06
118
X08
140
X10
160
X12
180
15° 0 0 0 0 0 0
20° 0 0 0 0 0 0
25° 0 0 0 0 2 3
30° 0 0 0 2 3 5
35° 0 0 2 3 5 7
40° 0 0 3 5 7 11
45° 0 2 5 7 11 15
50° 0 3 7 11 15 19
55° 2 5 11 15 19 24
60° 3 7 15 19 24 30
65° 5 9 19 24 30 36
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