The implementation of noise reduction measures on the existing buildings with noise sensitive user applications inside Ørland Main Air Station. This includes constructional measures for buildings inside the station, with a noise sensitive application request, not complying with the requirements for internal noise level and/or the Working Environment Act Roof/façade/replacement of windows, etc. are examples of such measures. The type and extent of measures are dependent on the external noise level, the building's soundproofing qualities, including its structure and standard, as well as the building's intended use/activities. The measures will mainly concern constructional (carpenter, painter, etc.) works, including some requirements for technical disciplines.