Kansainväliset yhteydet vuoden 1967 äänieristysnormien muotoutumisessa

suorastaan ratkaiseva merkitys oman normityömme kannalta

Kirjoittajat

• Mikko Kylliäinen

Abstrakti

The effect of technology transfer on the Finnish sound insulation requirements of 1967

The Finnish Association of Civil Engineers published the first Finnish sound insulation requirements of buildings in 1967. These requirements set the sound insulation level of Finnish dwellings for over 30 years as the requirements remained same until the year 2000. The drawing up of the requirements was first suggested in 1948, and several drafts were outlined in the 1950s and 1960s. At the same time, there was no chair for building acoustics in Finland, neither a modern acoustical laboratory. Thus, the possibilities to do research were quite limited.
The profession of engineers specializing in acoustical design of buildings emerged in Finland in the 1930s. During the Second World War, Finland had scientific contacts mainly with Germany and Sweden. German methods of sound insulation measurement were adopted and used through the 1950s and 1960s.
At the end of the 1950s, the Nordic countries tried to make a common draft for sound insulation requirements, but consensus dealing with the measurement methods was not achieved. After that, Finland decided to follow the standard draft of the international organization for standardization ISO. In 1960, the Finnish sound insulation committee published their suggestion for sound insulation requirements. This draft was, however, considered too theoretical and complicated. When international standardization went on in the 1960s, the idea of common Nordic requirements rose up again. Consensus was not found this time either, but when Sweden decided to publish new requirements on the basis of ISO standards, Finland made a similar decision.