Insulating glass should be a long life?

 fact life of insulating glass up to 30 years life expectancy, using dual-channel sealing, bending aluminum, filling 3A molecular sieve desiccant, dry gas filled insulating glass service life of up to 30 years life expectancy, which is the result of foreign practice prove.
2) the current domestic use of insulating glass of the raw materials of poor quality auxiliary materials, in most cases the actual service life of 8 years or so, there will be condensation, frost, salt precipitation, burst and so on, resulting in energy-saving insulation effect of insulating glass failure to achieve life can not remedy.