
3
VELUX 45
Integration – more windows
Installation along roof ridge
The over ridge flashing is used with standard single or combi flash-
ings and replaces the top flashing sections of these flashings. Note
that the over ridge flashing can only be used in roof pitches from
20° tot 50°.
As the over ridge flashing is made to measure for the individual
situation, is must be ordered as a special product. The order must
include a drawing/draft with the following information:
• roof pitch of each roof surface
• ashing variant (material)
• window sizes
• distance "A" measured at red-line-level
• if more windows are installed side by side, state frame distance "a"
When the windows are installed with the top frames close to the
ridge, note that the windows must be positioned in a way that al-
lows them to be opened without the sashes colliding.
When using centre-pivot windows, this can be ensured by observ-
ing the following distances ("A" mm):
Roof pitch
Window height
780
mm
980
mm
1180
mm
1400
mm
1600
mm
20° 1) 1) 1) 1) 1)
25° 1) 1) 1) 40 mm 50 mm
30° 40 mm 40 mm 40 mm 80 mm 100 mm
35° 50 mm 70 mm 90 mm 120 mm 140 mm
40° 90 mm 110 mm 140 mm 170 mm 2)
45° 120 mm 160 mm 2) 2) 2)
up to 50° 2) 2) 2) 2) 2)
1) The windows can be installed frame-to-frame without risk of colliding
sashes.
2) VELUX over ridge flashing can only be ordered for installations with
distance "A" not exceeding 170 mm.
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