Areas covered in this Technical Design Guide include sound insulation of wall, floor and ceiling elements relevant to Sole Occupancy Units and surrounding construction; and assistance for those wanting to improve and upgrade sound performance beyond minimum BCA requirements, including low frequency impact sound, vibration induced sound and flanking noise.
Introduction
Sound is an important issue in residential construction. Sound insulation tends to govern the choice of construction system because of its daily impact on quality of life. The references below provide information on acoustic considerations for timber-framed construction, including the sound-performance requirements for different classes of buildings within the Building Code of Australia (BCA).
When designing a new or modifying an existing dwelling, all building work must comply with the National Construction Code (NCC) and any actions to reduce the ingress of external noise must be designed and constructed to be compatible with all other aspects of the NCC that may apply.
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