DAMPA_75_years_of_quiet_design_ENG - Flipbook - Page 38
The first
acoustic panels
Over the winter of 1951-1952, Det Fyenske Trælastkompagni
invested in a new Dæmpa factory in the village of Sankt Klemens near Odense’s southern fringe. Conveniently located
next to the railway yard, it was constructed using Larsen &
Nielsen factory-made concrete blocks and, upon completion, enabled production to be brought fully in-house.
While it was being built, Fischer developed a panel design
that was significantly more sound-absorbent due to an
increased density of perforations and also the fitment on the
reverse of a Rockwool pad. Mass-producing these under
factory conditions would necessitate switching to the use of
hardboard which would be sufficiently resilient not to disintegrate under stress during the perforation process. As
hardboard was made in 122 x 244 centimeter sheets, it was
decided to produce the perforated hardboard panels in a
range of sizes – 20 x 30 cm, 30 x 60 cm, 40 x 60 cm, 60 x 60
cm and 60 x 120 cm. These could be supplied either with or
without a Rockwool backing, it being the cheaper option for
some clients to supply their own backing material.
The hardboard was imported from suppliers in Norway,
Sweden and Finland. The factory in Sankt Klemens was
only a production site with a foreman to supervise while all of
the administration of Dæmpa’s activities was carried out
from Det Fyenske Trælastkompagni’s office in Odense,
where the managers and a secretary were located.
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