Acoustic comfort in office complexes, hotels, and auditorium drywalls relies on effective sound transmission loss layers. Heavy stone wool panels provide superior noise dampening compared to low-density alternatives.
1. Sound Absorption Coefficient (NRC 0.90)
The fibrous, porous structure of stone wool acts as a mechanical dampener. When sound waves hit the panel, they travel through millions of tiny air pockets, converting sound energy into heat. Specifying 48kg/m3 to 96kg/m3 slabs ensures high NRC ratings across speech frequencies.
2. Sound Transmission Class (STC) in Drywalls
Under-deck acoustic wraps and metal-stud drywall partition cavities filled with resin-bonded slabs block sound travel between adjacent corporate conference rooms. This is critical to maintain confidentiality and reduce ambient echo in public assembly halls.