Under Floor Hanger System

 

Underfloor Hanger

Airborne and Impact Noise. Installed when client wants to keep existing floorboards as final floor layer. Original floorboards are lifted to expose joists. Mineral wool is friction fitted between joists. A shock absorbing hanger is fitted over joist and floor boards are fixed directly into hanger flanges. A 19mm planc is installed on hanger flanges and edges sealed with acoustic mastic to aid in airborne noise reduction.

System FLOOR HEIGHT GAIN IMPACT PERFORMANCE (SRI) dB AIRBORNE PERFORMANCE (SRI) dB
Under Floor Hanger +/-8mm or
+/-0.3inches
18 17

*This is an estimated reduction. The result will depend on the existing structure.

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