Acoustics

There are many occasions where a Kalzip roof system will require to be acoustically enhanced. Some buildings, due to their location (e.g. near an airport or in a busy city centre) will need to keep excessive external noise out, whilst others because of internal use or process (e.g. concert hall, engine-test facility etc) will require that the internal noise be contained.  A major contributory factor in the ability of a roof system to reduce the impact of air-borne sound is the total mass of the system.  Other factors include insulation and isolation.

Kalzip roof constructions can be modified to accommodate various acoustic performance requirements, by incorporating other layers such as high density insulation, acoustic boards and flexible membranes to provide increased sound reduction performance and by perforating the liner to provide improved sound absorption performance.

Kalzip acoustic board is a high density cement-particle board that can easily be incorporated into a Kalzip roof system in order to dramatically increase the mass and subsequently the sound reduction properties of the system.

Kalzip acoustic membrane is a high density rubberised polyethylene sound barrier membrane that can easily also be incorporated into the system to increase the mass and subsequently improve the sound reduction properties. The Kalzip acoustic membrane is typically used in conjunction with the Kalzip acoustic board and can also act as an isolator between boards further enhancing acoustic performance.

For further information on acoustically enhancing the Kalzip roof system please contact the Kalzip Technical Department.