STC Rating Chart What does an STC rating of 45 mean? What does an STC rating of 50 mean? Recommended STC Ratings What is the STC rating of drywall? What else should I know about STC ratings? What is a good STC rating for windows? How can I improve my STC rating? Using what you’...
STC ratings are used for windows, doors, walls and most building materials. For windows, STC ratings range from 18 to 38. STC ratings are the ONLY way to accurately compare various noise reduction products. An STC rating is an instrument measurement of how much noise is stopped. The STC ...
But to break it down further, basically you test a bunch of sounds at different frequencies or tones and see how many decibels are lost on the other side of the material. Record the findings and create a chart. Then compare that chart to other standard charts to determine your rating. So...