The quantity of space among the glazing is customizable, but normally ranges between 6mm to 20mm. The advised quantity of House involving the panes for double window glazing is 12mm, as this volume presents ideal thermal performance. Anything broader than 20mm will bring about diminished insulation performance because of convection. https://beautywater90000.dailyblogzz.com/32984614/what-does-residential-secondary-glazing-mean