Glass windows typically offer some amount of sound proofing, sometimes unintentionally. In general, ventilation is required to achieve large sound transmission. But some applications -- like gas ...

It’s easy to find windows with sound ratings in the 20s or 30s, to match walls made of siding. In fact, if you own that type of home, you should be careful not to waste money on windows that are ...

The sound transmission through the wall is then measured and the impact sound levels are converted to normalised levels using a reference equivalent absorption area of 1.0m 2. Adequate impact sound ...