Secondary glazing is converting your existing windows from solitary glazing to your sort of double glazing. This is certainly accomplished by incorporating a 2nd layer (normally crystal clear acrylic and not glass) in your windows. To know how insulation works it helps to understand heat move, which requires 3 fundamental https://henryz085hdw4.vidublog.com/33616209/the-2-minute-rule-for-secondary-window