InstaLay under screed resilient rubber layer - 65

InstaCoustic InstaLay 65 is a high performance resilient membrane designed to reduce the transmission of impact sound through floor screed

Floor System InstaLay65 Test Data
STRUCTURAL FLOOR - Concrete
Over ScreedTest F110
IMPACT 40dB LnTw
Floor system was tested with an appropriate ceiling system
Please consult InstaCoustic before specifying an acoustic system. The structure has a bearing on the overall performance.
Floor System InstaLay65 Test Data
STRUCTURAL FLOOR - Concrete
Under ScreedTest F115
AIRBORNE 52dB DnTw + Ctr
IMPACT 54dB LnTw
Floor system was tested with an appropriate ceiling system
Please consult InstaCoustic before specifying an acoustic system. The structure has a bearing on the overall performance.

Applications

Benefits

Click the Steps below to view diagrams

System Detail Illustration

Perimeter Detail Section

Please note that it is critical that the perimeter detail is applied consistently throughout the contruction process. Failure to isolate the perimeter edge of the screed will create points of contact with the structure that will result in flanking transmission of sound. The wall lining and the skirting board also require isolation from the screed to avoid flaking sound transmission. Failure to follow this detail could compromise the sound insulation performance.


Under Floor heating

Under floor heating systems can be applied within the screed application. However, it is critical that no fixings of any sort penetrate the resilient layer or create any direct points of contact between the screed and the structural floor. If the under floor heating system has an insulation layer, on which the heating pipes are installed, this can be laid directly on top of the resilient layer but not penetrate this layer.

Consult the underfloor heating manufacturer to check the minimum screed depth to cover the heating system.