2023年3月30日 · While the STC rating tells us how much sound is blocked from going through a product, the NRC Rating tells us how much sound is absorbed by a product. The STC rating is …

Sound Transmission Class (STC ) is an integer rating of how well a building partition attenuates airborne sound. In the USA, it is widely used to rate interior partitions, ceilings and floors, doors, windows and exterior wall configurations (see ASTM International Classification E413 and E90).

Sound Transmission Class (or STC) is an integer rating of how well a building partition attenuates airborne sound. In the US, it is widely used to rate interior partitions, ceilings, floors, doors, windows and exterior wall configurations.

2025年3月7日 · Sound Transmission Coefficient (STC) – otherwise known as “Sound Transmission Class” – is the golden standard that evaluates how well a barrier, be it a wall, ceiling, door, or window, reduces airborne sound.

2024年6月15日 · STC ratings measure the sound reduction capabilities of building materials, with ratings ranging from 0-100. High STC ratings help reduce noise transmission and create a focused environment in residential, commercial and educational spaces.

This comprehensive article will not only explain what STC is but will also provide the STC ratings of common materials and discuss the complex process of determining which of these materials will best absorb sound in a given space.

STC rating (Sound Transmission Class rating) is a score given to a building’s surface (wall, ceiling, window, etc.) based on its ability to reduce sound coming through it. STC rating goes from 25 – 65. The higher the rating, the less noise penetration. A rating of 25 is no soundproofing, and 65 is complete soundproofing.

The Sound Transmission Class (STC) is a single-number rating of a material's or an assembly's ability to resist airborne sound transfer at the frequencies 125-4000 Hz.

2022年11月25日 · Sound Transmission Class (STC), also known as the Sound Transmission Coefficient, is the oldest and most widely recognized sound rating system in the window and door industry. STC ratings are measured as a difference in decibel levels, where a higher rating indicates more complete sound absorption and sound deadening performance.

2023年12月7日 · STC ratings are a standard way to rate the effectiveness of an assembly to attenuate airborne sound. The result is a numerical rating somewhere between 25 and 60+.