Influence of the laboratory measurement method of the reduction of transmitted impact noise by covering floors on a heavyweight standard floor on the result

The article presents the results of laboratory measurements of the reduction of transmitted impact noise ΔL by floor coverings on a heavyweight standard floor. The tests were carried out for a floating floor with EPS T insulation in two thicknesses: 43/40 mm and 22/20 mm. Each test was carried out for two types of screed: cement and anhydrite. The tests were repeated for an additional screed load simulating furniture load and without load. An attempt was made to determine the impact of the lack of load on the test result and to check whether a small difference in the weight of the screed significantly affects the result.