I have been told I need a Class A sound absorber. What class is SonaSpray?
SonaSpray is any class you need it to be as we can adjust acoustic performance by increasing and decreasing the material depth to suit the acoustic requirement and budget.
On the most part, when a Class A absorber is requested, it is not actually needed due to a number of factors. Sometimes clients have been told to apply a Class A to 80% of the soffit. In applying the SonaSpray to 100% of the soffit, it not only looks better but it reduces the material depth required to the equivalent of a Class B or C.
As our test data is worst case onto concrete slab, the actual substrate can also have a huge impact. If spraying onto a flat hollow rib deck, you are gaining a huge amount of material depth over the ribs which increases low frequency performance and thus the Class. Likewise, if you are spraying onto something like a D60 profile steel sheet, the surface area is increased. Not only this but on the diagonal slopes of the profile, the material is a lot deeper when the sound is hitting it vertically. This means that we are able to dramatically reduce the material depth to save a huge amount of time and material which allows us to make the system even more economical for our clients.