Lindab WH25 - Installations within vertical wall with Fire Batt (Weichschott) sealing

INSTALLATION
WH25
LINDAB SAFE
24/50
 Installations within vertical wall with Fire Batt (Weichschott) sealing
Refer to the section Construction supports characteris-
tics p.17 for further information.
Comply with the minimum distances indicated on section
Minimum distances p.15.
 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.
The re damper has to be xed at the bottom and sus-
pended from the ceiling.
 Filling
Fill the space between the damper and the wall using Fire
Batt (Weichschott) sealing made from two rock wool pan-
els with minimum thickness of 50 mm and minimum den-
sity of 140 kg/m³.
The panels must be covered on both faces of the wall with
endothermic varnish type PROMASTOP E PASTE or HILTI
CFS-CT (minimum thickness of 1 mm) and with an internal
perimeter sealant type PROMASTOP E PASTE or HILTI CFS-S
ACR (minimum thickness of 1 mm).
Fire resistance classi-
cation
“D” hole size
[mm]
Wall minimum thickness
“S”
[mm]
Sealing
Rigid wall
EI 120 S Installation within rigid vertical wall with Fire Batt (Weichschott) sealing
Wall minimum density 550 kg/m³
EI 120 S
(300 Pa)
(Ø + 600 max) x (Ø + 600
max)
(rectangular hole)
100
Rock wool 140 kg/m³ and
endothermic varnish sealing
Flexible wall
EI 120 S Installation within vertical light wall (plasterboard) with Fire Batt (Weichschott) sealing
Wall rock wool density up to 80 kg/m³
(optional)
EI 120 S
(300 Pa)
(Ø + 600 max) x (Ø + 600
max)
(rectangular hole)
100
Rock wool 140 kg/m³ and
endothermic varnish sealing
EI 120 S Installation within vertical light wall (gypsum blocks) with Fire Batt (Weichschott) sealing
Wall minimum density 995 kg/m³
EI 120 S
(300 Pa)
(Ø + 600 max) x (Ø + 600
max)
(rectangular hole)
100
Rock wool 140 kg/m³ and
endothermic varnish sealing
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. Wall indicated in the table
Lp Overlap length between re damper and duct: see section
Dimension p.11
D Hole size: see table above
S Wall minimum thickness: see table above
WH25
LINDAB SAFE
24/50