The final issue is that secondary glazing will never possess the thermal efficiency of Main glazing. The hole concerning the panes will always be bigger than 12mm as it's mounted about the pre-current frames. OAK 2000 Visit Profile Glass is a totally recyclable material and likewise has no limit https://mylesqgufq.bloginwi.com/68301967/the-best-side-of-london-secondary-glazing