Acoustic wall barrier for public spaces KOHLHAUER
WOODEN NOISE ABATEMENT

Wood Preservation

Wood can be well preserved by profiling its cross-sections in an appropriate manner. Chemical preservation of wood is possible using boiler-pressured impregnation in accord with DIN 68 800, or optionally with CKB salt (containing chrome) or CX salt (chrome-free). The colour tone is green. Other colouring is possible on a limited basis. The impregnation is resistant to salt used for melting purposes and is not impaired by plants. Wooden barriers are especially well suited for supporting climbing plants.
Design

Profiled, horizontal wood railings above and below. Vertically arranged tongue and groove planking (30 mm) is nailed from the reverse side of the wall to this framing. Exterior to the planking and including a 60 mm hollow space, an absorption plate with a conduit density of > 1000 N/cbm is attached and concealed on the front side with black fibre glass batting. The barrier surface which is to be impacted by noise is covered with poles that have been flattened and nailed vertically (flattened diameter 54 mm x 40 mm, separated at the core and milled). Vertical wooden filling elements are assembled to the pole connections and are milled in order to incorporate compression sealing tape. The wall is additionally stabilized on the reverse side with wedges.

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