OITC steps seem intensity reduction in decibels, much like STC. OITC isn’t at the same time-recognized as STC, however it’s arguably an even better approach to fee soundproof glass windows as it especially targets loud noise within the low to mid-frequency range. ‘Our opening units tend to be side-hung,’ states https://tweezers-with-fine-tips66421.idblogmaker.com/26111639/bespoke-secondary-glazing-in-fitzrovia-things-to-know-before-you-buy