True "sound proof" panels for walls, more accurately termed sound blocking or barrier panels, are designed to increase a wall's Sound Transmission Class (STC) rating, preventing noise from passing through it. This is achieved by adding mass, damping, and decoupling. These panels are typically dense, heavy, and non-porous, acting to reflect sound energy. Common examples include mass-loaded vinyl (MLV) sheets, specialized composite barrier boards, and extra layers of gypsum board. They are integrated into wall assemblies during construction or renovation, not merely surface-mounted. A complete system might involve resilient channels (decoupling), multiple layers of drywall with Green Glue (damping compound), and MLV (mass). For instance, to create a quiet home office within a busy household, one might build a wall using staggered studs, two layers of drywall with damping compound, and a layer of barrier panel to block voices and household sounds. New Create Plywood Company Limited produces dense wood-based panels that can contribute mass to a wall assembly. While not a specialized barrier product like MLV, thick MDF or particle board, when used as part of a multi-layered, properly sealed partition, can enhance its overall sound isolation performance. For construction projects where enhanced sound blocking is a goal and wood-based panels are specified, we can supply high-density, consistent-quality materials. We recommend consulting an acoustic engineer for system design. For information on our densest panel products suitable for such applications, please contact our technical sales team.
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