LX Hausys has developed a 'first-grade floor structure for airborne noise reduction' that can help solve the problem of inter-floor noise.
LX Hausys noted on the 15th that it obtained the highest rating of 1st grade in the floor impact sound performance evaluation conducted at the construction site of the Korea Land and Housing Corporation (LH) for apartment buildings.
This performance evaluation was conducted from April to December of last year for the companies participating in LH's '2024 High-Performance Floor Impact Sound Isolation Structure Contest.' Among the participating companies, LX Hausys was the only one to achieve 1st grade in both weight impact sound and lightweight impact sound evaluation categories.
In the recent performance evaluation at the apartment construction site, LX Hausys recorded a weight impact sound of 36 decibels (dB) and a lightweight impact sound of 32 dB. The 1st grade standard is a noise level of 37 dB or lower transmitted to the lower floor.
The first-grade inter-floor noise reduction floor structure developed by LX Hausys is designed with cushioning material of urethane foam on a slab (210mm) and heavy mortar. It is designed as a total structure of 110mm, with 50mm of urethane foam cushioning material and 60mm of heavy mortar, maintaining the same thickness as the floor finishing layer of existing apartments, thus reducing floor impact sound without increasing thickness. In particular, the high-performance urethane foam cushioning material independently developed by LX Hausys is excellent at noise reduction and shock absorption, effectively blocking weight impact sound transmitted as low-frequency vibrations when walking or jumping.
A representative from LX Hausys said, "The acquisition of recognition for this first-grade inter-floor noise reduction floor structure is a result of the research and development (R&D) know-how and unparalleled technological prowess accumulated over the years in researching functional floor materials for airborne noise reduction," and added, "As LH announced that it will reflect the first-grade inter-floor noise reduction floor structure in its designs starting this second half of the year, we will focus on related research and development and technology commercialization in the future."