R-value indicates a cloth's capability to resist warmth movement through a offered thickness. Products with higher R-values resist heat transfer nicely, and are more ideal for insulation needs. Spacer: This separates The 2 panes of glass and is stuffed with desiccants to soak up moisture in the cavity. Trustindex verifies https://kitchen-refurbishment49009.thezenweb.com/5-simple-statements-about-secondary-glazing-explained-70024494