Open Cell Acoustic Foam TDS Properties Good insulation value (~3.7 per inch)Higher vapor permeability, but controlledAir barrier at full wall thicknessAbsorbs sound, especially bass tones Best sound absorption in normal noise frequency rangesEconomical yieldLow density (8-14 kg/m³) Application Areas Wall cavitiesFloor assembliesCeiling assembliesRoof assemblies (interior)Attics (vented and unvented)Crawl spaces (vented and unvented) Product Code PLSPOL 130 PRO 13kg/ m³