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Fire Batt (Weichschott) sealings
Fire dampers installed within vertical wall
Fire dampers installed within floor
Installation
a [mm]
b [mm]
c [mm]
d [mm]
Rigid w
all
EI 120 S Installation within vertical rigid wall with Fire Batt
(Weichschott) sealing
Rock wool 140 kg/m³ and endothermic varnish sealing
50 *
50
-
-
Fle
xible w
all
EI 120 S Installation within vertical light wall (plasterboard)
with Fire Batt (Weichschott) sealing
Rock wool 140 kg/m³ and endothermic varnish sealing
50 *
50
-
-
EI 120 S Installation within vertical light wall (gypsum blocks
wall) with Fire Batt (Weichschott) sealing
Rock wool 140 kg/m³ and endothermic varnish sealing
50 *
50
-
-
Floor
EI 90 S Installation within floor and Fire Batt (Weichschott)
sealing
Rock wool 140 kg/m³ and endothermic varnish sealing
-
-
200
75
* For the distance
a
including between 50 mm and 200 mm the fire resistance class is reduced to EI
90 S
Installation remote from construction support
Fire dampers installed within vertical wall
Fire dampers installed within floor
Installation
a [mm]
b [mm]
c [mm]
d [mm]
Rigid w
all
Installation remote from the vertical rigid wall
Mortar or plaster putty sealing
200
110 *
-
-
Installation remote from the vertical rigid wall with Fire Batt
(Weichschott) sealing
Rock wool 140 kg/m³ and endothermic varnish sealing
200
110 *
-
-
Fle
xible w
all
Installation remote from vertical light wall (plasterboard)
Plasterboard and rock wool 100 kg/m³ or mortar or plaster
putty sealing
200
110 *
-
-
Installation remote from the vertical light wall (plasterboard)
with Fire Batt (Weichschott) sealing
Rock wool 140 kg/m³ and endothermic varnish sealing
200
110 *
-
-
Installation remote from the vertical light wall (gypsum
blocks wall)
Mortar or plaster putty sealing
200
110 *
-
-
Installation remote from the vertical light wall (gypsum
blocks wall) with Fire Batt (Weichschott) sealing
Rock wool 140 kg/m³ and endothermic varnish sealing
200
110 *
-
-
Floor
EI 120 S Installation remote from the floor
Mortar or plaster putty sealing
-
-
200
110 *
EI 90 S Installation remote from the floor
Mortar or plaster putty sealing
-
-
200
110 *
* Due to rock wool panels thickness. See installation details.
Installations within vertical light wall (Shaft wall)
Fire dampers installed within vertical wall
Fire dampers installed within floor
Installation
a [mm]
b [mm]
c [mm]
d [mm]
EI 90 S Installation within vertical light wall (Shaft wall)
Plasterboard and mortar or plaster putty sealing
50
75
-
-
Construction supports characteristics
The European standard for fire dampers foresees a precise correlation
between the wall/floor characteristics and the fire resistance class
obtained, as well as the correlation between wall/floor used for the
test and wall/floor used for the actual installation.
The test results obtained on a type of wall/floor are valid also for
walls/floor of the same type but with greater thickness and/or densi-
ty than those used in the test.
For plasterboard walls, the test results are also valid for walls with a
greater number of plasterboard layers on each side.
As a result, the indicated thickness and density characteristics are to
be considered as minimum values.
The wall/floor in which the fire dampers are installed must be fire
class certified according to the standards foreseen for the structure.
Rigid walls
Can be made with aerated concrete blocks, poured concrete, con-
crete panels, perforated cell elements in concrete or brick in accord-
ance with the following characteristics:
• minimum thickness 100 mm;
• minimum density 550 kg/m³.
The use of a reinforcing beam above the opening is recommended
for walls made from concrete blocks, bricks or in concrete cell ele-
ments.
For walls built with perforated elements, it is also recommended that
the area of the opening be made from full elements (for example
aerated concrete blocks) to guarantee the correct adhesion of the
mortar.
