The ratings relate to decibels and refers to the average level of noise stopped at 18 different frequencies.
Best noise reduction replacement windows.
To get a sense of how effective a window is at noise reduction you need to look at the sound transmission class stc rating given to it.
This rating will tell you how much sound can travel through the window.
In fact plenty of noise reduction windows offer soundproofing qualities but not all of them are worth the additional cost.
Talk to your milgard certified dealer about all noise dampening options.
In this case you will probably be looking at some additions that can help your windows eliminate the excess noise.
Quiet line series can provide a rating of up to 48 for superior noise reduction.
The company s inch laminated insert has a stc rating of 38 and promises up to a 95 noise reduction depending on the size of the window opening apartment location and type of noise.
Let s take a look at some of the best soundproof windows and find out which windows and features work the hardest to block out that noisy neighbor of yours.
Sound transmission class stc is a rating system used to communicate how well a product blocks sound.
If your windows are still relatively new or are in a good condition it may not make financial sense for you to do a replacement just for noise reduction purposes.
A typical double glazed window provides an stc rating of 28 32.
One is the instrument measurement while the other is the perceived noise reduction.