With a number of thicknesses out there in Axgard Secondary Glazing Sheets, you'll find various alternatives determined by your spending budget. A 3mm polycarbonate sheet is the best sheet to make use of for secondary glazing. Sure, of course. Orders is often collected from our premises in Colchester, Essex. At https://sashwindows54321.livebloggs.com/35846325/the-definitive-guide-to-secondary-glazing