Noise reduction in a staircase
The C. family from Meckenbeuren, Germany, told us about noise reduction in their staircase:
A year ago we moved into a semi-detached house. The house has an open staircase with a floating stairway leading from the basement right up to the third floor. This staircase was like a kind of “noise-transmitting tube”, so that any noises or sounds echoed through the entire house. Music playing on the first floor or people talking on the third floor were clearly audible throughout the house, even in the basement, and the level of reverberation was just unbearable. So we asked soniflex for advice.
One of the very knowledgeable soniflex advisors suggested covering the underside of the wooden steps of our stair with 30-mm thick soni DECOR noise reduction panels with self-adhesive rear face. As the steps have different shapes and dimensions, we had to cut the noise protection panels to size prior to installation. Using a sharp carpet cutter, this went quick and easy. Removing the protective film from the self-adhesive backing was also a breeze. Then we applied the cut-to-size pieces of the soni DECOR noise reduction panels to the underside of the steps. Even when some of them were not in exactly the right position at first go, this presented no problem: We just peeled them off very carefully – without damage neither to the panels themselves nor to the self-adhesive on the rear face – and re-installed them in the right position. The adhesive worked just fine. (soniflex comments:) Depending on the substrate, removing and re-applying self-adhesive acoustic panels may not always be that easy.)
Of a total of 42 steps, we covered the underside of only 30 steps with soni DECOR acoustic foam panels. The result is terrific and we are totally impressed with this simple noise reduction solution. The reverberation effect is completely gone and the entire staircase has become much less noisy. It even seems that the sound absorber panels mounted on the underside of the steps dampen the footfall of people walking up or down the stairs. This cost-effective noise reduction measure has made living in our house much more comfortable.