Accuracy of prediction methods for impact sound pressure levels

There are various methods available for predicting impact sound pressure levels of floors. Understanding the accuracy of these prediction methods can be an important aspect of designing or refining a proposed flooring system. This paper provides a brief outline of some available prediction methods for massive (typically concrete) floors and light weight floor constructions. Consideration is given to what tolerances are suitable for evaluating prediction accuracy, with reference made to variation in laboratory measurements of impact sound pressure level (measurement reproducibility). Prediction results are presented for a number of different constructions to demonstrate the extent of agreement between prediction methods and laboratory results. Both massive and light weight flooring systems are considered, with various arrangements of floor covers and ceilings.