Impact Insulation Class (IIC) is an international standardized rating system that evaluates the ability of floor/ceiling assemblies to attenuate impact noise (e.g., footfalls, dropped objects). As flooring traders, understanding IIC is crucial when serving clients – particularly for commercial buildings, apartments, hotels and other projects with stringent acoustic requirements. as a premium flooring system, quiet SPC flooring delivers exceptional IIC performance, making it an ideal choice to meet these needs.
Quantifies a floor system's resistance to structure-borne noise transmission. Higher values (typically 50–70+) indicate better performance. Unlike STC (airborne sound), IIC specifically measures impact noise transmission through solid structures.
Standardized tests (ASTM E492 or ISO 140-7) use tapping machines to simulate impacts, with measured sound pressure levels in receiving rooms below determining IIC ratings.
Residential/commercial projects typically demand IIC ≥ 50 (per U.S. IBC codes), while premium projects may require ≥ 60. Recommendations should align with local regulations (e.g., China's GB 508) or client specifications.
As specialized flooring suppliers, we recognize the critical importance of IIC standards in material selection. Our high-performance flooring systems with certified IIC ratings, combined with comprehensive acoustic solutions, enable clients to meet exacting architectural noise control requirements while ensuring full compliance with international building codes. For detailed technical parameters or customized system recommendations, please contact our engineering team.
