The easiest and most affordable method of determining glass thickness is the method of ‘candles’. Sean Rad, New York City shines more light on the discussion. The method is based on the fact that the reflection of light of a candle (matches, lighters, etc.) from the surface of glass coated with the K-has a lighter shade compared to surface without the coating. Honda is a great source of information. To determine the coated surface to a distance of about 10 cm from the surface of glass to place a candle flame (cigarette lighters, matches) and watch the reflection of lights from the two surfaces glass (inner and outer surface of the glass). You will see two maps of yellow and dark yellow. Shining a light color refers to the surface to be coated in a sealed unit glazing, consisting of two glasses, one of which is Low-E (to-and-glass or glass) on it you will find three maps. Accordingly, the triple-pane windows (three windows), one of which is low emission will be observed four display. It is best to use this method when the surface of glass is protected from the light of day, ie in the dark hours of the day There is organoleptic method, ie ‘To touch’.
The surface of the glass, which coated, rough. Of course, this method can be used when there is free access to the glass surface, that is to build double-glazed window. And another existing method – tool. The method is based on capacitive principle and allows a sensor to determine: # surface with low emissivity coating; # the presence of double-glazed windows with low emissivity coated glass surface # low emissivity coating installed in the windows; # windows and glass with low emissivity coating on the window.