15
Before installation
1947
6720813331-08.1ST
1140-
1520
[mm]
TUBO II C
W
W
Fig. 25 Vertical alignment of the roof hooks
>
If required, attach sufficiently viable boards/planks
(minimum thickness: 30 mm) to the rafter. If necessary,
remove counter batten in this area.
>
Fit the bracket in the valley of the tile so that when
loaded it doesn‘t contact the tile.
6720813331-01.1ST
> 5 mm
a
270 280 290 300 310 320 330 340 350 360 370 380 390
260
a [mm]
Fig. 26 Fasten roof hooks
>
With rafters larger than 60 x 100 mm, the roof hook
can be mounted directly onto the rafter. Pre-drill rafter
using 5 mm drill. (See Fig. 27)
Fig. 27
6720813331-07.1ST
5 mm
8x90 DIN EN 14592
> 60x100 mm
Fastening of the roof hook with 8 x 90 DIN EN 14592
>
If this is not possible, a board with a thickness of min.
5 cm can be screwed onto two rafters as indicated in
Fig. 28. Hereby the roof hook can be moved to the left
or right side of the rafter. In this case the rafters must be
capable of bearing a load. Consult a structural engineer
in case of doubt.
Fig. 28
6720813331-09.1ST
> 5 cm
3 mm
5x50 DIN EN 14592
Fastening of the roof hook with 5 x 50 DIN EN 14592
6.3 Fitting the roof hooks with roof tiles
WARNING: System damage through
subsequent loosening of the long nuts
on the roof hooks.
When the nut is tightened, a lock is activated.
>
If the long nut is undone more than once,
secure it on site (such as with suitable adhe-
sive).
