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4.3 Application for roof windows with roof window drive holder
Casement area max. 1.5 m
2
for windows with single drive
max. casement weight: calculation see below.
Ü = overlap from 0 to 20 mm
(packing possible; to be supplied by others)
Casement height Fh to the centre
of the pivot hinge
Space requirement on the
casement
a = casement width max. 1000 mm
Space requirement for installation of drive on
frame min. 450 mm
space requirement
min. 450
* guideline only as installations vary
with type of window
for overlap
Ü = 0 [mm]
for overlap
Ü = 20 [mm]
F = 0,68 x P
Fmax. = 250 N
Example:
P = 25 kg = ca. 250 N
F = 250 N x 0,68 = 170 N
Formula for calculating the opening and closing force for dome lights or horizontal windows
F = drive force required for opening:
max. 250 N
P = weight of casement [in N]
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