Using STC ratings bases noise on measurable details, not viewpoints. The upper the STC, the more sound is stopped; Each individual place is important and significant. Easy Do it yourself measuring, and an evident instant boost in heat. Huge difference inside a historic household with historic windows. The continuous https://icicle-inspiredcocktails77776.get-blogging.com/35773073/about-soundproofing-materials-for-windows