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Mounting on a support system
46 | EN
6 2 1
Wall penetration in solid wall
The mounting process described below allows achievement of a fire re-
sistance class I90, depending on the fire resistance length of the wall. For
I 120, see "6.3.8 Mounting a wall/ceiling penetration" on page 62.
Note!
T he distance from the wall to the next suspension points must not exceed
350 mm.
7
6
5
Fig 50: Wall penetration through solid wall
1 Ceiling
3 Mineral wool insulation, mate-
rial class A 1, melting point
> 1,000 °C, e.g. OBO MIW
5 Mineral fibre plate as support
profile
7 For BSKM 1025: insert lid
support BSKM-DS 1025
•
Lay the ends of the duct on a mineral fibre plate 5 .
When plugging the mineral wool 3 , it is advisable to use an im-
•
plement such as a stick and push as much as possible into the gap
above the ducts, in order to achieve as high a density as possible.
•
Moisten the surface of the mineral wool and the mineral fibre plate
slightly with water and coat both sides with filler 6 with a thickness of
min. 2 mm.
BSKM 0407/0711/
1025
I30
I60
I90
5-10 mm
BSKM 0407/ 0711/1025
≤ 350 mm
2 Solid wall
4 Gap between ducts: 5‒10 mm
6 Sealing with filler
OBO Bettermann
1
2
3
4
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