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).

2018年9月17日 · Mecart’s standard acoustic products are labelled STC-35, STC-45 and STC-52. As previously explained, this means they have been tested in a laboratory for their sound transmission loss. The test results are available upon request. A sound reduction of 35 decibels is …

Below are the STC ratings of various wall assemblies, each presented to help illustrate concepts, improvements and rules of thumb. The estimated ratings are based on laboratory test results from various compendiums of STC ratings.

–Veneer plaster partitions achieve up to 63 STC in steel-framed resilient systems and up to 52 STC in wood-framed resilient systems –Have achieved 1- to 4-hr. fire-resistance ratings for veneer and conventional systems –Can minimize or eliminate irregularities such as ridging, boarding and nail pops associated with standard drywall

“An STC rating roughly equals the decibel (dB) reduction in noise volume a wall or partition can provide. For example, if an 80 dB sound on one side of a wall/floor/ceiling is reduced to 50 dB on the other side, that partition is said to have an STC of 30”

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. Outside the …

2025年3月7日 · What is an STC Rating? 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. Essentially, it’s the report card of a structure’s ability to reduce noise.

JM Formaldehyde-free insulations help reduce noise that can impact a building’s comfort and continuing value. Formaldehyde-free – will not off-gas formaldehyde in the indoor environment. Thermal Efficiency – provides effective resistance to heat transfer with R …

Fully customizable acoustical door & window wall unit. Up to STC 52 rated system. Ideal for a wide range of interior & exterior applications.

2017年4月28日 · Learn more about STC ratings and what kind of results to expect. This guide can help you determine which rating is best for your soundproofing project.