When you are building your home, there are a lot of things that you have to think about. One of the things that you have to deal with but you might not have ever stopped to think about is how noisy your house is going to be. There are going to be things like TVs and radios going, as well as just the normal day-to-day noises of people talking and walking around. There are ways that you can help keep all that noise down so that your house is going to be less noisy and more welcoming for you. One of those things is to lay an acoustic underlay under your floor.
Sound waves depend on a nice smooth surface in order to bounce around and transmit. If you have nice smooth walls, the sound waves will bounce around between the walls and then off the floor and ceiling and with nothing to absorb that sound, it will amplify and transmit through your entire house. The acoustic underlay will go under the subflooring when the flooring is being laid and then help deaden the sound and keep it from bouncing around. There are different ways that it works.
How Acoustic Underlay Works
There are different ways that the acoustic underlay works to deaden the sound. One is that it keeps the sound from starting altogether. Well, it may not keep the sound from starting at all, but what it does is keep it from being as loud as it would otherwise be. For example, if you have a tile floor without an acoustic underlay and you walk on it, the noise is going to reverberate through the floor and into the room. With the acoustic underlay, as you put your foot down and create the vibrations that would become a sound, the underlay take and absorb that vibration as much as possible. That means that while there may still be some vibration and some noise, it's going to be much less. Another way that the acoustic underlay works is that it acts as a barrier between floors. That means that noise from an upper story won't transmit down to a lower floor and vice versa. There may still be some noise that goes from one floor to the next, but not near as much. This is great if you have bedrooms on an upper level and you want to make sure that noise from a lower level doesn't disturb anyone sleeping.
If you are building your home, you want to make sure that you do what you can to keep the noise down.