Скачать или смотреть How Mass Improves Sound Control in Floor-Ceiling Assemblies

Understanding acoustics is critical for meeting building code requirements and improving tenant satisfaction. In this video, we explain the role of mass in sound control for floor-ceiling assemblies and how increasing mass directly improves the Sound Transmission Class (STC) rating.

Using examples from lightweight wood frame assemblies, we show how adding just ¾ inch of gypsum underlayment can double or triple system mass—boosting airborne noise isolation and bringing assemblies from below code to well above minimum requirements.

By incorporating heavier materials like gypsum underlayment, contractors, engineers, and developers can ensure compliance while delivering quieter, more comfortable living and working spaces.

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