The acoustic performance of Trusscore Wall&CeilingBoard is very similar to conventional products like drywall, with our panels demonstrating similar sound absorption and sound blocking performance as ½” and 5/8” drywall when installed on wall and ceiling assemblies: Sound absorption — or the Noise Reduction Coefficient (NRC) — is a measure of how much sound a material can absorb to reduce the amount of noise within a room. The NRC performance of Trusscore Wall&CeilingBoard is estimated to be 0.15 (i.e., 15% of sound is absorbed), and drywall's performance is also 0.15. Sound blocking — or the Sound Transmission Class (STC) — is a measure of how well a material can block sound from passing through it into an adjacent space. A material’s STC reflects a sound’s decibel reduction from the space where the sound originates to the adjacent space. When installed on studs or joists, Trusscore Wall&CeilingBoard has an estimated STC value of 30 to 35 (i.e., it reduces 30 to 35 decibels of sound), which is similar to the sound blocking performance of single-layer drywall.