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1. Plasterboard thickness 20 mm
2. Horizontal U-shaped profile
3. Vertical C-shaped profile
4. Self-drilling screw Ø 3,5 X 35 mm
5. Self-drilling screw Ø 3,5 X 55 mm
Gypsum blocks light walls
Gypsum blocks wall can be built with special solid gypsum blocks
with interlocking shaped edges as indicated in the supplier's instruc-
tions and according to the following characteristics:
• minimum thickness 70 or 100 mm according to the type and re-
sistance class required;
• minimum density 995 kg/m³.
It is generally advisable to first build the wall and then provide the
opening for the fire damper.
Aerated concrete floors
Aerated concrete floors can be built during installation or with pre-
formed slabs with interlocking shaped edges according to the fol-
lowing characteristics:
• minimum thickness 100 or 150 mm according to the type and re-
sistance class required;
• minimum density 650 kg/m³
Poured concrete floors
Poured concrete floors can be built during installation or with pre-
formed slabs with interlocking shaped edges according to the fol-
lowing characteristics:
• minimum thickness 100 or 150 mm according to the resistance
class required;
• minimum density 2200 kg/m³.
Installations within vertical rigid wall
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
Position the damper in the opening so that the side of the closing
mechanism extends as indicated in the drawing.
Filling
Fill the space between the wall and the damper as indicated in the
table and in the drawing.
Fire resistance classification
“D” hole size
[mm]
Wall minimum thickness “S”
[mm]
Sealing
EI 120 S Installation within vertical rigid wall
Wall minimum density 550 kg/m³
EI 120 S
(500 Pa)
From Ø + 25
to Ø + 440
(circular hole)
100
Mortar or plaster putty
sealing
EI 90 S Installation within vertical rigid wall
Wall minimum density 550 kg/m³
EI 90 S
(500 Pa)
From (Ø + 50) x (Ø + 50)
To (Ø + 70) x (Ø + 70)
(square hole)
100
Rock wool 100 kg/m³ with
infill plasterboard (thickness
12.5 mm)
