An Unbiased View of double glazing
The upper the value, the greater is its resistance to warmth transfer. A standard IGU consisting of very clear uncoated panes of glass (or lights) with air during the cavity between the lights ordinarily has an RSI-worth of 0.35 K·m2/W.On average, a normal secondary glazing window is around 50 % the price of a double glazing window. The set up of