Evaluation of EN 12354 Part 1 and 2 for Nordic Dwelling Houses

Abstract

Standardised prediction models for airborne and impact sound insulation in buildings are described in EN 12354 part 1 and 2. These models have been evaluated by comparing the predicted and measured sound insulation for common building constructions used in Nordic dwelling houses. In total, more than 200 comparisons were carried out. The standard includes informative annexes on calculation of input data for the prediction models (the sound reduction index of monolithic elements, the normalised impact sound pressure level of homogeneous floor constructions, the vibration reduction index for junctions, etc.). The annexes as well as alternative calculation principles have been evaluated. Calculations based on a few modifications of the informative annexes are recommended for application of the standard in the Nordic countries. For some types of construction like lightweight double leaf walls, floating floors, etc., results of measurements in Nordic laboratories are in most cases used as input data. The obtained accuracy of the predictions is satisfactory for airborne sound insulation and for impact sound insulation of heavy floors vertically.