For those who don’t want thick double glazing, trim double glazing has width of only around 14mm (While some are as slim as 10mm) and is much more productive. The U-Value (the measurement that signifies the window’s thermal performance) is best and slender glazing is more aesthetically pleasing. For more https://sashwindows51710.bloginder.com/36587695/indicators-on-sash-window-draught-proofing-you-should-know