Thank you for your assist. We are very happy with all the things - all windows glance so fantastic, and typical of workmanship and tidiness of fitters was fantastic. Just lifted into place and right after fitting screws on the sub frame and trimming around it took just 40 minutes. https://fire-ratedsecondaryglazin04676.creacionblog.com/32129311/not-known-factual-statements-about-window-insulation