Acoustic Containment within Buildings
Wherever noise influences human activity, effective acoustic sealing is essential. Whether preserving the confidentiality of discussions within a private office or a doctor’s consulting room, or reducing noise from adjacent rooms in hotels, maintaining effective acoustic separation is paramount.
Door assemblies are an integral part of buildings, and while there must be gaps around their perimeter to operate efficiently, left unsealed these clearances allow sound to pass freely. Lorient’s solution is to provide sealing options for all four sides of the door that create a physical barrier and ensure that effective acoustic separation is achieved.
Section F the Building Code of Australia (BCA) covers Sound Transmission within buildings and includes a set of construction & performance requirements to ensure occupants do not suffer illness or loss of amenity as a result of unwanted sound transmission.
The provisions outlined in Section F relate to certain classifications of building and these include:
• Class 2: Multi residential / sole occupancy apartment buildings
• Class 3: Hotels, Motels and Boarding houses
• Class 9C: Aged care facilities
Section F5.5.b requires a door assembly incorporated into a wall in a Class 2 or 3 building separating a sole occupancy unit from a stairway, corridor or public space to have an acoustic performance of not less than 30Rw - when determined by acoustic standards AS/NZS1276.1 or AS/ ISO717.1.