OITC steps sound intensity reduction in decibels, identical to STC. OITC isn’t in addition-recognized as STC, but it really’s arguably a greater way to rate soundproof glass windows as it exclusively targets loud noise in the minimal to mid-frequency array. When you buy by back links on our web page, https://stevep009vst6.blogmazing.com/26553389/what-does-noise-reduction-windows-mean