Introduction

In the philosophy of Carpoly's building energy-saving brand - Sanval, meeting national standards is merely the most basic requirement of our product system. What we aim to do is to surpass these standards and provide customers with higher quality products and services, thereby protecting the warmth of our homes and the breath of the Earth.

**PART 01** 

Outstanding Sound Insulation Performance, Exceeding National Standards

In modern urban life, noise pollution has become an important factor affecting the quality of life of residents. Especially in residential buildings, the noise issue between floors often leads to conflicts between neighbors. The "Design Code for Sound Insulation of Civil Buildings" GB50118-2010 sets the minimum standard for impact sound insulation of floor slabs between residential units at 65dB, aiming to create a more peaceful and comfortable living environment for residents.

In 2023, the application of Sanval floating sound insulation floor slabs in the Shandong Xiangxi Cuiting project demonstrated its outstanding sound insulation performance. The project was strictly tested on-site by the National Center for Quality Inspection of Building Energy Conservation, and the impact sound insulation effect was only 49 decibels, far below the national standard of 65dB. This result not only objectively shows the sound insulation capability of Sanval floating sound insulation floor slabs but also reflects the continuous pursuit and unremitting efforts of the Sanval team in technological innovation and product quality.

**PART 02**

Technical Decoding of Excellent Sound Insulation Performance

Sanval floating sound insulation floor slabs use advanced graphite-modified molded polystyrene board as the core material. This material has excellent compressive elastic recovery function, which can quickly return to its original state when impacted, effectively absorbing and dissipating sound wave energy transmission, and greatly reducing the transmission of noise through the floor slab. The addition of graphite endows the board with good thermal insulation performance, making it not only achieve efficient sound insulation but also have excellent thermal insulation and heat preservation functions, achieving the dual effects of sound insulation and energy saving.

**PART 03**

Rigorous Testing, Guarantee of Quality

The National Center for Quality Inspection of Building Energy Conservation, as one of the most authoritative testing institutions in the field of building energy conservation and green building in China, has advanced testing equipment and a professional technical team, and the on-site test report issued is rigorous and authoritative.

In April 2024, the center conducted a comprehensive, meticulous, and rigorous test and evaluation of Sanval floating sound insulation floor slabs at the project site. The test content includes on-site sound level meter measurement, frequency spectrum analysis, and impact sound source simulation test, to fully evaluate the sound insulation performance of the floor slab.

From the physical properties of the material to the actual application effect, every link follows strict standards and specifications, ensuring the accuracy and reliability of the test results, providing a strong guarantee for characterizing and quantifying the excellent performance of Sanval floating sound insulation floor slabs.

**Testing Site**

Sanval is committed to creating a safe, efficient, and durable building energy-saving system through innovative technology, providing customers with reliable security. We always adhere to quality as the core, through careful research and development and strict testing, to ensure that every product can reach the leading level of the industry. Ensuring that the product not only provides excellent thermal insulation performance but also has efficient energy saving and long-lasting durability, contributing to the construction of a green and livable home!