Lindab RECTANGULAR Series - Page 19

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D1 Hole base: see table above
D2 Hole height: see table above
1. Rock wool panel 50 mm thick with 140 kg/m³ density.
2. PROMASTOP E PASTE or HILTI CFS-S ACR type sealant
3. PROMASTOP E PASTE or HILTI CFS-CT endothermic varnish
4. Vertical wall
5. Self-drilling screw Ø 5 X 60 mm
6. Self-drilling screw Ø 5 X 120 mm
7. Washer 40 x 40 mm
8. M10 threaded rod
9. C-shaped steel prole 10x41x41x41x10 mm
10. M10 nut
11. Screw Ø 6 X 20 mm
12. M6 nut
13. Mortar M-10, EN998-2 or plaster putty
 Installation remote from the vertical light wall (plasterboard)
Refer to the section Construction supports characteristics for further
information.
Comply with the minimum distances indicated on section Minimum
distances .
 Wall opening
A opening must be provided in the wall as indicated in the table and
in the drawing
 Damper positioning
Connect re damper to the galvanized steel duct as indicated in the
drawing.
Between re damper and wall the maximum distance is 1000 mm.
The maximum length of the part of duct connected to the damper
is 2100 mm
The re damper has to be xed and suspended from the ceiling as
indicated in the drawing.
The hanging structure is composed by:
– 2 C-shaped steel proles 10x41x41x41x10 mm
– 2 M10 threaded rods
– 4 M10 nuts
Position the threaded rods 135 mm from the connection between
re damper and duct and at a distance of 50 mm from the side of
the damper.
 Filling
Fill the space between the wall and the re damper using rock wool
which has density of 100 kg/m³.
Cover the rock wool by applying on both faces of the wall a layer of
plasterboard, to a total minimum thickness of 12,5 mm per side, to
make a frame 100 mm wide.
Cover the duct over its entire length and re damper with 2 rock
wool panels 50 mm thick and with a density of 140 kg/m³.
The panels must be covered externally with endothermic varnish
type PROSTOP E PASTE or HILTI CFS-CT (minimum thickness of 1 mm)
and with an internal perimeter sealant type PROMOSTOP E PASTE or
HILTI CFS-S ACR (minimum thickness of 1 mm).
Fix rst layer of rock wool panel to the duct with screws Ø5 X 60 mm
and washers 40 X 40 mm, and the second one with screws Ø5 X 120
mm and washers 40 X 40 mm.
Fire resistance classication
Hole size “D1 x D2”
[mm]
Wall minimum thickness “S”
[mm]
Sealing
Flexible wall
Installation remote from the vertical light wall (plasterboard)
Wall rock wool minimum density 100
kg/m³
EI 120 S
(300 Pa)
EI 90 S
(500 Pa)
From (B+75) x (H+75)
to (B+95) x (H+95)
100
Rock wool 100 kg/m³ or
mortar or plaster putty with
inll plasterboard (thickness
12.5 mm)