The quantity of Room involving the glazing is customizable, but usually ranges among 6mm to 20mm. The advised quantity of space between the panes for double window glazing is 12mm, as this amount delivers optimal thermal performance. Nearly anything wider than 20mm will cause decreased insulation performance due to convection. https://louiszwocl.widblog.com/87470056/5-tips-about-window-soundproofing-you-can-use-today