Hangszigetelt

Hangszigetelt is a term used to describe spaces, structures, or elements designed to reduce the transmission of sound between areas. It covers both airborne noise, such as voices and music, and impact noise, such as footsteps. The goal is to create a quieter environment by limiting how sound energy travels through walls, ceilings, floors, and other building components.

The design relies on several principles. Increasing the mass of a partition helps block sound, while damping reduces vibrations within materials. Decoupling structural paths—such as using floating floors, double walls, or resilient connections—prevents sound and vibrations from easily transferring between rooms. Absorption inside cavities and rooms reduces reverberation and overall noise levels.

Common methods and materials include dense wall assemblies (concrete, thick gypsum boards, or layered constructions), mineral wool or other insulation to improve airborne isolation, and products like mass loaded vinyl. For structural decoupling, double stud walls, staggered studs, and resilient channels are used. For paths like doors and windows, tight seals, acoustic doors, laminated glass, and improved frames help. Finishes with good sound absorption, such as acoustic panels, can reduce internal noise. Ventilation and HVAC systems may employ duct liners, silencers, and specially designed ductwork to limit noise transmission.

Performance is typically described using metrics such as the sound transmission class (STC) for airborne noise and the impact isolation class (IIC) for impact noise, with measurements guided by standards like ISO 717 and related EN ISO documents. Real-world results depend on overall design, construction quality, and ongoing maintenance.

Applications include residential buildings, recording studios, cinemas, laboratories, and hospitals, where effective hangszigetelt construction contributes to privacy, comfort, and compliance with noise regulations.