Sound insulation test

The Knauf Diamant board, known for its superior acoustic properties, was subjected to a sound insulation test to evaluate its effectiveness in soundproofing.

The test involved creating an enclosed structure using the Diamant board and then comparing the volume levels of music played from a phone inside and outside the box. The primary objective was to measure how much sound the Diamant board could block, thereby demonstrating its sound insulation capabilities.

Test Setup

To begin, a box was constructed entirely out of Knauf Diamant boards. The dimensions of the box were chosen to be large enough to house a standard smartphone comfortably while allowing for accurate measurement of sound levels. The edges and corners of the box were carefully sealed to ensure no sound leakage, which could compromise the integrity of the test results.

Sound Source and Measurement

A smartphone was used as the source of sound, playing music at a consistent volume. To ensure uniformity, the same music track was played at the same volume setting throughout the test. This controlled variable was crucial for obtaining reliable data.

The sound levels were measured using a precise sound level meter, calibrated to measure in decibels (dB). The sound level meter was placed at a fixed distance from the phone, ensuring that measurements were taken from the same location for both scenarios: when the speaker connected to phone was outside the box and when it was inside.

Testing Procedure

1.???? Baseline Measurement (Phone and speaker connected to a mobile phone via Bluetooth, outside the Box): The speaker was placed outside the Diamant board box, and the music was played. The sound level meter recorded the volume of the music. This measurement served as the baseline data, representing the unimpeded sound level.

2.???? Measurement Inside the Box: Next, the speaker was placed inside the Diamant board box. The same music track was played at the same volume setting, and the sound level meter recorded the volume of the music as it emanated from within the box.

Results and Analysis

The decibel readings from both scenarios were compared to determine the difference in sound levels. The expectation was that the Diamant board would significantly reduce the volume of the music heard outside the box, showcasing its soundproofing capabilities.

The results were compelling. The baseline measurement, taken with the phone outside the box, showed a decibel level from 78,4 dB – 82,2 dB, reflecting the direct sound from the phone. When the phone was placed inside the Diamant board box, the sound level dropped significantly. The sound level meter recorded a reduced volume of 52,7 dB – 55,0 dB, indicating a substantial reduction in sound transmission. And what is very important, the box is not made like Knauf system, with boards, profile and insulation, but just with Diamant boards.

The test confirmed the effectiveness of the Knauf Diamant board in sound insulation. The 25 dB reduction demonstrated that the board significantly blocks and absorbs sound, making it an excellent material for environments where sound control is crucial. This includes residential buildings, offices, and public spaces where noise reduction is essential for comfort and productivity.