42
Position:
1
Fire damper
2
Mortar or gypsum
3
Stuffing box (mineral stone wool min. density 140 kg/m³)
≤
75
≤
75
≤
7
5
≥
A+100
≥
B
+
1
0
0
≤
75
≥
100
(≥
100)+20
●
Gap between damper and construction is filled
by mortar or gypsum and mineral wool
●
Wool is fixed to damper body and construction
by fire protection mastic.
●
Mineral wool thickness = construction thickness
+ 20 mm or 50 mm
●
Installation is valid for ceiling construction
Installation opening has to
be reinforced by steel U-
profile. Profile is fixed by
screws ≥3,5 mm with corre-
sponding length. Distance
between screws ≤200 mm.
