LX Hausys and GS Engineering & Construction Obtain Grade 1 Certification for Inter-Floor Noise Reduction

Industry’s Lowest Heavy Impact Noise Level at 31 dB
LX Hausys and GS Engineering & Construction Achieve Grade 1 Certification for Floor Impact Sound Insulation

LX Hausys and GS Engineering & Construction recorded the industry's lowest noise levels in a floor impact sound quality test.

On September 1, LX Hausys announced that the "Impact Noise Reduction Floor Structure," jointly developed with GS Engineering & Construction, achieved 31 dB for heavy impact noise and 27 dB for light impact noise in a recent floor impact sound quality test conducted by the LH Quality Testing Certification Center. As a result, the company received a Grade 1 certificate for floor impact sound insulation performance from Korea Land & Housing Corporation (LH).

LX Hausys Floor Structure Image for Reducing Interfloor Noise. LX Hausys

The company explained that the recorded heavy impact noise level is 6 dB lower than the Grade 1 standard (37 dB or below), marking the industry's lowest level and the highest-ever performance in reducing inter-floor noise in Korea. Heavy impact noise quantifies the "thumping" sound caused by children running or heavy objects falling, which is a key factor in inter-floor noise conflicts.

The "Impact Noise Reduction Floor Structure" developed by the two companies applies "high-density open-cell polyurethane" instead of the previously used EPS (expanded polystyrene), EVA (ethylene vinyl acetate), and polyester as inter-floor noise buffers. This buffer material excels in noise reduction and shock absorption, effectively blocking heavy impact noise transmitted as low-frequency vibrations when people walk or run.

Additionally, instead of using high-mass mortar, which is typically required to achieve Grade 1 performance, the structure uses lightweight standard mortar, improving construction convenience and securing a competitive edge for faster commercialization.

Meanwhile, LX Hausys and GS Engineering & Construction signed a business agreement earlier this year and have been conducting joint research to comprehensively optimize floor slab structures, buffer materials, and construction methods, collaborating on the development of high-performance inter-floor noise reduction floor structures.

A representative from LX Hausys stated, "Going forward, we will accelerate the expansion of on-site applications together with GS Engineering & Construction and take the lead in reducing inter-floor noise, a chronic issue in Korea's residential culture."

This content was produced with the assistance of AI translation services.