17
Installation
≥100
5. Make the necessary openings (Wn + 100 mm) x
(Hn + 100 mm) in the wall.
400 mm
≥150 kg/m³
≥ 40 kg/m³
≤60%
≥150 kg/m³
6. Mount the dampers in the opening.
Apply rigid stone wool panels (150 kg/m³) to a depth of
400 mm (150 mm on each side of the wall) to seal the opening
at the side with minimal distances.
This sealing is applied over the whole width/height of the
damper(s).
When the damper is installed at a distance of 25 mm from a
floor/ceiling, the rigid high-density stone wool panels may be
replaced with standard 40 kg/m³ stone wool (e.g. Rockfit 431),
compressed by at least 40%.
Plaster /
Mortar
Mortar
7. Seal the rest of the opening with standard mortar or gypsum
(only for vertical walls).
5
6
7
