7
18
0
24
0
≥
100
≥
400
≥
100
variable **
Installation opening perimeter has to be
reinforced by standard drywall profiles.
18
0
24
0
≥
100
≥
400
≥
100
variable **
≥
100
≥
400
240
180
variable **
≥
50
≥
50
≥
50
≥
50
* min. 110 - Concrete/ min. 125 - Aerated Concrete
150*
≥
40
Fire damper FDMB
Solid ceiling construction
Mortar or gypsum
Gypsum wall construction
Solid wall construction
Duct
Fire protection plate of mineral
wool
Mineral stone wool
Fire protection mastic min. thick-
ness 1 mm
Cement lime plate min. thickness
15 mm
Stone wool with one side stitched
on wire Grids, bulk density
105 kg/m thick. 180 mm (e.g.,
three layers thick. 60 mm)
Stone wool with one side stitched
on wire Grids, bulk density
105 kg/m thick. 60 mm
** Dependent on the distance between
damper and fire separating construction