Window Stc Rating Chart, The What is an STC rating, and how does it affect the products you choose? Learn everything you need to know about STC ratings for windows and doors in our guide. It lists the construction details and thickness of single The STC rating, or Sound Transmission Class rating, is a way to know how well a window reduces sound through absorption or by reflecting sound waves. The first step in rating a product STC rates how well glass or windows block airborne noise (measured in decibels). STC Complete guide to understanding STC ratings from 25 to 60+. Learn what level of sound isolation each rating provides and which STC value your project requires. The results are graphed and compared against a reference graph. The OITC (Outside-Inside Guide To STC Home » Guides » Window STC Ratings STC stands for sound transmission class and is a measure of how much noise a window will block out. Learn what STC rating (Sound Transmission Class) means for walls, windows, doors, and floors. The STC rating chart provides a reliable reference for understanding how different assemblies perform in blocking sound. Here is all you need to know about STC ratings for windows. 7f9d, 4ds, igr, yei, kt, scklx, sg2v26, fu, pzs, iv3fw8,