LX Hausys said on the 24th that it obtained the top grade certification for inter-floor noise from the Korea Land & Housing Corporation (LH) for its floor structure product that includes installed flooring.
LX Hausys said its newly developed "inter-floor noise reduction floor structure (AF Solution 4_E)" received a Grade 1 certificate for floor impact sound insulation after recording under 37 decibels (dB) for both light and heavy impact sound in a floor impact sound quality test conducted by the LH Quality Test Certification Center.
The Grade 1 floor structure from LX Hausys is a product in which LX Hausys' "Edditone (F330)" flooring for new apartments is installed on a universal floor structure that includes a lightweight foamed layer, which is applied to most apartment designs.
The "high-density open-cell polyurethane" cushioning material developed by LX Hausys plays a primary role in damping vibrations from low-frequency heavy impacts generated when people walk or run. The "Edditone (F330)" flooring reduces the transmission of impact energy, maximizing the reduction effect of heavy impact sound. Heavy impact sound is an index that quantifies the "thudding" that occurs when a child runs or a heavy object drops.
"Edditone (F330)" is flooring for new apartments that applies a self-developed high-strength material, "Natural Stone Core" (a composite compressed at high temperature and pressure using natural stone powder and polymer resin). While enabling a variety of designs such as wood and stone, it is more impact-resistant and durable than actual engineered wood or tile (mineral).
In general, hard, high-strength flooring is effective for floor sound insulation, but the company noted that earning Grade 1 with a floor structure that includes the installed flooring is of significant technical meaning.
An LX Hausys official said, "This floor impact sound certification test produced figures measured not in a test lab but in a real residential environment at an apartment site of GS Engineering and Construction," adding, "We expect this will further accelerate the commercialization of the floor structure product." Earlier, LX Hausys and GS Engineering and Construction signed a business agreement early this year and are conducting joint research on a high-performance inter-floor noise reduction floor structure.