There are not many options for treating the ceiling to isolate impact footfall noise. Whether the structure is of wood or concrete, it requires significant resilience to isolate the intense vibrations from impact footfall noise.
In order of highest performing to lowest performing
Treating the issue of impact footfall noise from the ceiling below leaves only resilient sound clips as a viable option. We recommend GenieClips® RST because of the extensive IIC testing for the clip showing exceptional performance at 80 and 100 Hz. The IIC test does not include these two key frequencies, but the frequencies are still important because of the difficulty in isolating low frequencies and the number of complaints regarding low frequency footfall noise transfer. View the GenieClip® RST.
Damping With Decoupling
Green Glue Compound on a fixed drywall ceiling alone will not help much with isolating impact footfall noise. The intensity of these vibrations is simply too much for any damping compound to handle in a rigid ceiling (drywall screwed directly to framing). However, if the ceiling is resilient, meaning suspended from resilient sound clips or resilient channel, then Green Glue Compound will have significant value in isolating impact footfall noise. This is because damping compounds, like Green Glue Compound, are efficient in resilient assemblies that allow the drywall to flex, thus allowing the Green Glue Compound to shear and work as intended. View Green Glue Compound tubes or Green Glue Compound pails.