• What’s the thermal conductivity measurement unit?

    When evaluating the thermal insulation performance of a glass product,we usually know that clear& tinted single piece glass is 5.84,Single silver low-E insulated glass 1.8,and double silver low-E is 1.55-1.65.The lower the value,the better thermal insulation performance the glass has. But What does the value mean and the measurement unit? Actually the measurement unit is W/M2.k,which means watt/square meter/Kelvin,it’s under same confirmed air condition,the heat transfered throught the glass products. While even this measurement unit,there’re many different conditions depend on…

  • What’s the function of argon gas in argon filled insulated glass?

    Argon is a kind of inert gas, which has colorless, odorless, non-toxic properties and stability. In air, its content is about 1%, and is the most economical inert gas compared with helium and neon. Argon is usually been filled in the insulated glass to increase the glass thermal insulation performance,let’s take example of single silver low-E + Clear insulated glass, argon content increase from 0-100%,the glass U value decrease from 1.86 to 1.59,for triple silver low-E glass, U value decrease…

  • some misunderstanding about glass U value

    Misunderstanding 1: Thicker glass has much better U value than thin glass, laminated glass U value is significantly lower than that of the same thickness glass. For clear float glass, the increase of glass thickness does not increase the insulation performance. For example, thick 12mm clear glass and 5mm clear glass,the thickness and glass weight increased by 1.12 times. but its U value only decreased by 7.59%. The hydrogen-filled insulating glass made of 12mm glass and 5mm glass,U value decreased…

  • Thermal insulation function of low e coating

    In the mid-1970s, it was discovered that most of the heat transfer of double glazing was caused by infrared radiation exchange from one layer of glass to another. Therefore, as long as the emissivity of any one of the double glazing is reduced, the heat transfer can be greatly reduced. This is the reason for LOW-E glass. There is data showing that the clear float glass has an emissivity of 0.84 and the low e coated glass with an emissivity of 0.2 reduces the…

  • Greenhouse Glass types

    Greenhouse ,or conservatory create an important role in daily life.It brings green in the cold winter ,,and some big greenhouse ensure that we can have higher output. The greenhouse thermal insulation is an very important factor  that affect the interior temperature.while glass is the deciding thermal conductive.Greenhouse glass types are below: Traditional Greenhouse glass are  3mm or 4mm tempered glass ,the advantage is cheap and higher light transmittance,high strength to offer impact resistance.But the shortage is high glass U value,which…

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