59 STC / 54 IIC / 57 HIIC
Unlike many of our competitor's products, the new R1 was tested using standard 18″ truss joist assemblies spaced 24″ o.c, with standard single layer batt insulation. We even used a standard, unbacked 2.5mm glue-down vinyl plank when testing. Specifying the new Treadstone R1 requires no changes to your plans to achieve the specification listed. Full sound test data is available by contacting Formulated Materials.
Flooring Underlayment: Treadstone: Sound Attenuating Mat - R Series