High-absorbent noise barrier (Wooden)

Wooden noise barrier systems meet all important environmental and maintenance standards set by architects and landscape planners. Wood is an ideal material with respect to natural appearance and flexible design.
Specifications summary

Outstanding features at a glance:
Sound insulation in accord with DIN EN 1793-2	32 dB
Acoustic absorption in accord with DIN EN 1793-1	9 dB
Measurements
Width	Centre line measurement minus 4.0 cm
Thickness	0.17 m
Height	Up to 6.00 m
Weight	55.00 kg/sqm
Material	Impregnated pine; or alternatively larch timber with no wood preservatives
Fastening Technology	Screws, ribbed nails made from stainless steel in accord with V4A as per DIN 267, part 11

All elements are vertically assembled. Special sizes are possible to customize terrain-alignment segments as well as for integrating doors and gateways. Structural design is achieved through vertically assembled half-rounds.

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.

Images

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