Facade sound insulation in external walls with ETICS in expanded polystyrene (EPS)
The document was born from a research on facade sound insulation in external walls with ETICS in expanded polystyrene (EPS) to compare the behaviour of two different kind of masonry: expanded clay blocks wall (30 cm thick) and bricks wall (30 cm thick). On-site tests are made with the same surrounding conditions (shape, geometry, exposure, …) and the same ETICS in EPS. This research shows how external walls in expanded clay blocks have a better sound insulation in facades (difference about 3 dB on-site) than the same wall with bricks. This article also shows some design considerations to highlight the different contribution of the two masonry also with doors and windows.